chore: initial snapshot for gitea/github upload

llm-gateway-competitors/sub2api-tar/backend/internal/repository/account_repo_integration_test.go

@@ -0,0 +1,853 @@
+//go:build integration
+
+package repository
+
+import (
+	"context"
+	"testing"
+	"time"
+
+	dbent "github.com/Wei-Shaw/sub2api/ent"
+	"github.com/Wei-Shaw/sub2api/ent/accountgroup"
+	"github.com/Wei-Shaw/sub2api/internal/pkg/pagination"
+	"github.com/Wei-Shaw/sub2api/internal/service"
+	"github.com/stretchr/testify/suite"
+)
+
+type AccountRepoSuite struct {
+	suite.Suite
+	ctx    context.Context
+	client *dbent.Client
+	repo   *accountRepository
+}
+
+type schedulerCacheRecorder struct {
+	setAccounts []*service.Account
+	accounts    map[int64]*service.Account
+}
+
+func (s *schedulerCacheRecorder) GetSnapshot(ctx context.Context, bucket service.SchedulerBucket) ([]*service.Account, bool, error) {
+	return nil, false, nil
+}
+
+func (s *schedulerCacheRecorder) SetSnapshot(ctx context.Context, bucket service.SchedulerBucket, accounts []service.Account) error {
+	return nil
+}
+
+func (s *schedulerCacheRecorder) GetAccount(ctx context.Context, accountID int64) (*service.Account, error) {
+	if s.accounts == nil {
+		return nil, nil
+	}
+	return s.accounts[accountID], nil
+}
+
+func (s *schedulerCacheRecorder) SetAccount(ctx context.Context, account *service.Account) error {
+	s.setAccounts = append(s.setAccounts, account)
+	if s.accounts == nil {
+		s.accounts = make(map[int64]*service.Account)
+	}
+	if account != nil {
+		s.accounts[account.ID] = account
+	}
+	return nil
+}
+
+func (s *schedulerCacheRecorder) DeleteAccount(ctx context.Context, accountID int64) error {
+	return nil
+}
+
+func (s *schedulerCacheRecorder) UpdateLastUsed(ctx context.Context, updates map[int64]time.Time) error {
+	return nil
+}
+
+func (s *schedulerCacheRecorder) TryLockBucket(ctx context.Context, bucket service.SchedulerBucket, ttl time.Duration) (bool, error) {
+	return true, nil
+}
+
+func (s *schedulerCacheRecorder) ListBuckets(ctx context.Context) ([]service.SchedulerBucket, error) {
+	return nil, nil
+}
+
+func (s *schedulerCacheRecorder) GetOutboxWatermark(ctx context.Context) (int64, error) {
+	return 0, nil
+}
+
+func (s *schedulerCacheRecorder) SetOutboxWatermark(ctx context.Context, id int64) error {
+	return nil
+}
+
+func (s *AccountRepoSuite) SetupTest() {
+	s.ctx = context.Background()
+	tx := testEntTx(s.T())
+	s.client = tx.Client()
+	s.repo = newAccountRepositoryWithSQL(s.client, tx, nil)
+}
+
+func TestAccountRepoSuite(t *testing.T) {
+	suite.Run(t, new(AccountRepoSuite))
+}
+
+// --- Create / GetByID / Update / Delete ---
+
+func (s *AccountRepoSuite) TestCreate() {
+	account := &service.Account{
+		Name:        "test-create",
+		Platform:    service.PlatformAnthropic,
+		Type:        service.AccountTypeOAuth,
+		Status:      service.StatusActive,
+		Credentials: map[string]any{},
+		Extra:       map[string]any{},
+		Concurrency: 3,
+		Priority:    50,
+		Schedulable: true,
+	}
+
+	err := s.repo.Create(s.ctx, account)
+	s.Require().NoError(err, "Create")
+	s.Require().NotZero(account.ID, "expected ID to be set")
+
+	got, err := s.repo.GetByID(s.ctx, account.ID)
+	s.Require().NoError(err, "GetByID")
+	s.Require().Equal("test-create", got.Name)
+}
+
+func (s *AccountRepoSuite) TestGetByID_NotFound() {
+	_, err := s.repo.GetByID(s.ctx, 999999)
+	s.Require().Error(err, "expected error for non-existent ID")
+}
+
+func (s *AccountRepoSuite) TestUpdate() {
+	account := mustCreateAccount(s.T(), s.client, &service.Account{Name: "original"})
+
+	account.Name = "updated"
+	err := s.repo.Update(s.ctx, account)
+	s.Require().NoError(err, "Update")
+
+	got, err := s.repo.GetByID(s.ctx, account.ID)
+	s.Require().NoError(err, "GetByID after update")
+	s.Require().Equal("updated", got.Name)
+}
+
+func (s *AccountRepoSuite) TestUpdate_SyncSchedulerSnapshotOnDisabled() {
+	account := mustCreateAccount(s.T(), s.client, &service.Account{Name: "sync-update", Status: service.StatusActive, Schedulable: true})
+	cacheRecorder := &schedulerCacheRecorder{}
+	s.repo.schedulerCache = cacheRecorder
+
+	account.Status = service.StatusDisabled
+	err := s.repo.Update(s.ctx, account)
+	s.Require().NoError(err, "Update")
+
+	s.Require().Len(cacheRecorder.setAccounts, 1)
+	s.Require().Equal(account.ID, cacheRecorder.setAccounts[0].ID)
+	s.Require().Equal(service.StatusDisabled, cacheRecorder.setAccounts[0].Status)
+}
+
+func (s *AccountRepoSuite) TestUpdate_SyncSchedulerSnapshotOnCredentialsChange() {
+	account := mustCreateAccount(s.T(), s.client, &service.Account{
+		Name:        "sync-credentials-update",
+		Status:      service.StatusActive,
+		Schedulable: true,
+		Credentials: map[string]any{
+			"model_mapping": map[string]any{
+				"gpt-5": "gpt-5.1",
+			},
+		},
+	})
+	cacheRecorder := &schedulerCacheRecorder{}
+	s.repo.schedulerCache = cacheRecorder
+
+	account.Credentials = map[string]any{
+		"model_mapping": map[string]any{
+			"gpt-5": "gpt-5.2",
+		},
+	}
+	err := s.repo.Update(s.ctx, account)
+	s.Require().NoError(err, "Update")
+
+	s.Require().Len(cacheRecorder.setAccounts, 1)
+	s.Require().Equal(account.ID, cacheRecorder.setAccounts[0].ID)
+	mapping, ok := cacheRecorder.setAccounts[0].Credentials["model_mapping"].(map[string]any)
+	s.Require().True(ok)
+	s.Require().Equal("gpt-5.2", mapping["gpt-5"])
+}
+
+func (s *AccountRepoSuite) TestDelete() {
+	account := mustCreateAccount(s.T(), s.client, &service.Account{Name: "to-delete"})
+
+	err := s.repo.Delete(s.ctx, account.ID)
+	s.Require().NoError(err, "Delete")
+
+	_, err = s.repo.GetByID(s.ctx, account.ID)
+	s.Require().Error(err, "expected error after delete")
+}
+
+func (s *AccountRepoSuite) TestDelete_WithGroupBindings() {
+	group := mustCreateGroup(s.T(), s.client, &service.Group{Name: "g-del"})
+	account := mustCreateAccount(s.T(), s.client, &service.Account{Name: "acc-del"})
+	mustBindAccountToGroup(s.T(), s.client, account.ID, group.ID, 1)
+
+	err := s.repo.Delete(s.ctx, account.ID)
+	s.Require().NoError(err, "Delete should cascade remove bindings")
+
+	count, err := s.client.AccountGroup.Query().Where(accountgroup.AccountIDEQ(account.ID)).Count(s.ctx)
+	s.Require().NoError(err)
+	s.Require().Zero(count, "expected bindings to be removed")
+}
+
+// --- List / ListWithFilters ---
+
+func (s *AccountRepoSuite) TestList() {
+	mustCreateAccount(s.T(), s.client, &service.Account{Name: "acc1"})
+	mustCreateAccount(s.T(), s.client, &service.Account{Name: "acc2"})
+
+	accounts, page, err := s.repo.List(s.ctx, pagination.PaginationParams{Page: 1, PageSize: 10})
+	s.Require().NoError(err, "List")
+	s.Require().Len(accounts, 2)
+	s.Require().Equal(int64(2), page.Total)
+}
+
+func (s *AccountRepoSuite) TestListWithFilters() {
+	tests := []struct {
+		name      string
+		setup     func(client *dbent.Client)
+		platform  string
+		accType   string
+		status    string
+		search    string
+		wantCount int
+		validate  func(accounts []service.Account)
+	}{
+		{
+			name: "filter_by_platform",
+			setup: func(client *dbent.Client) {
+				mustCreateAccount(s.T(), client, &service.Account{Name: "a1", Platform: service.PlatformAnthropic})
+				mustCreateAccount(s.T(), client, &service.Account{Name: "a2", Platform: service.PlatformOpenAI})
+			},
+			platform:  service.PlatformOpenAI,
+			wantCount: 1,
+			validate: func(accounts []service.Account) {
+				s.Require().Equal(service.PlatformOpenAI, accounts[0].Platform)
+			},
+		},
+		{
+			name: "filter_by_type",
+			setup: func(client *dbent.Client) {
+				mustCreateAccount(s.T(), client, &service.Account{Name: "t1", Type: service.AccountTypeOAuth})
+				mustCreateAccount(s.T(), client, &service.Account{Name: "t2", Type: service.AccountTypeAPIKey})
+			},
+			accType:   service.AccountTypeAPIKey,
+			wantCount: 1,
+			validate: func(accounts []service.Account) {
+				s.Require().Equal(service.AccountTypeAPIKey, accounts[0].Type)
+			},
+		},
+		{
+			name: "filter_by_status",
+			setup: func(client *dbent.Client) {
+				mustCreateAccount(s.T(), client, &service.Account{Name: "s1", Status: service.StatusActive})
+				mustCreateAccount(s.T(), client, &service.Account{Name: "s2", Status: service.StatusDisabled})
+			},
+			status:    service.StatusDisabled,
+			wantCount: 1,
+			validate: func(accounts []service.Account) {
+				s.Require().Equal(service.StatusDisabled, accounts[0].Status)
+			},
+		},
+		{
+			name: "filter_by_search",
+			setup: func(client *dbent.Client) {
+				mustCreateAccount(s.T(), client, &service.Account{Name: "alpha-account"})
+				mustCreateAccount(s.T(), client, &service.Account{Name: "beta-account"})
+			},
+			search:    "alpha",
+			wantCount: 1,
+			validate: func(accounts []service.Account) {
+				s.Require().Contains(accounts[0].Name, "alpha")
+			},
+		},
+	}
+
+	for _, tt := range tests {
+		s.Run(tt.name, func() {
+			// 每个 case 重新获取隔离资源
+			tx := testEntTx(s.T())
+			client := tx.Client()
+			repo := newAccountRepositoryWithSQL(client, tx, nil)
+			ctx := context.Background()
+
+			tt.setup(client)
+
+			accounts, _, err := repo.ListWithFilters(ctx, pagination.PaginationParams{Page: 1, PageSize: 10}, tt.platform, tt.accType, tt.status, tt.search, 0)
+			s.Require().NoError(err)
+			s.Require().Len(accounts, tt.wantCount)
+			if tt.validate != nil {
+				tt.validate(accounts)
+			}
+		})
+	}
+}
+
+// --- ListByGroup / ListActive / ListByPlatform ---
+
+func (s *AccountRepoSuite) TestListByGroup() {
+	group := mustCreateGroup(s.T(), s.client, &service.Group{Name: "g-list"})
+	acc1 := mustCreateAccount(s.T(), s.client, &service.Account{Name: "a1", Status: service.StatusActive})
+	acc2 := mustCreateAccount(s.T(), s.client, &service.Account{Name: "a2", Status: service.StatusActive})
+	mustBindAccountToGroup(s.T(), s.client, acc1.ID, group.ID, 2)
+	mustBindAccountToGroup(s.T(), s.client, acc2.ID, group.ID, 1)
+
+	accounts, err := s.repo.ListByGroup(s.ctx, group.ID)
+	s.Require().NoError(err, "ListByGroup")
+	s.Require().Len(accounts, 2)
+	// Should be ordered by priority
+	s.Require().Equal(acc2.ID, accounts[0].ID, "expected acc2 first (priority=1)")
+}
+
+func (s *AccountRepoSuite) TestListActive() {
+	mustCreateAccount(s.T(), s.client, &service.Account{Name: "active1", Status: service.StatusActive})
+	mustCreateAccount(s.T(), s.client, &service.Account{Name: "inactive1", Status: service.StatusDisabled})
+
+	accounts, err := s.repo.ListActive(s.ctx)
+	s.Require().NoError(err, "ListActive")
+	s.Require().Len(accounts, 1)
+	s.Require().Equal("active1", accounts[0].Name)
+}
+
+func (s *AccountRepoSuite) TestListByPlatform() {
+	mustCreateAccount(s.T(), s.client, &service.Account{Name: "p1", Platform: service.PlatformAnthropic, Status: service.StatusActive})
+	mustCreateAccount(s.T(), s.client, &service.Account{Name: "p2", Platform: service.PlatformOpenAI, Status: service.StatusActive})
+
+	accounts, err := s.repo.ListByPlatform(s.ctx, service.PlatformAnthropic)
+	s.Require().NoError(err, "ListByPlatform")
+	s.Require().Len(accounts, 1)
+	s.Require().Equal(service.PlatformAnthropic, accounts[0].Platform)
+}
+
+// --- Preload and VirtualFields ---
+
+func (s *AccountRepoSuite) TestPreload_And_VirtualFields() {
+	proxy := mustCreateProxy(s.T(), s.client, &service.Proxy{Name: "p1"})
+	group := mustCreateGroup(s.T(), s.client, &service.Group{Name: "g1"})
+
+	account := mustCreateAccount(s.T(), s.client, &service.Account{
+		Name:    "acc1",
+		ProxyID: &proxy.ID,
+	})
+	mustBindAccountToGroup(s.T(), s.client, account.ID, group.ID, 1)
+
+	got, err := s.repo.GetByID(s.ctx, account.ID)
+	s.Require().NoError(err, "GetByID")
+	s.Require().NotNil(got.Proxy, "expected Proxy preload")
+	s.Require().Equal(proxy.ID, got.Proxy.ID)
+	s.Require().Len(got.GroupIDs, 1, "expected GroupIDs to be populated")
+	s.Require().Equal(group.ID, got.GroupIDs[0])
+	s.Require().Len(got.Groups, 1, "expected Groups to be populated")
+	s.Require().Equal(group.ID, got.Groups[0].ID)
+
+	accounts, page, err := s.repo.ListWithFilters(s.ctx, pagination.PaginationParams{Page: 1, PageSize: 10}, "", "", "", "acc", 0)
+	s.Require().NoError(err, "ListWithFilters")
+	s.Require().Equal(int64(1), page.Total)
+	s.Require().Len(accounts, 1)
+	s.Require().NotNil(accounts[0].Proxy, "expected Proxy preload in list")
+	s.Require().Equal(proxy.ID, accounts[0].Proxy.ID)
+	s.Require().Len(accounts[0].GroupIDs, 1, "expected GroupIDs in list")
+	s.Require().Equal(group.ID, accounts[0].GroupIDs[0])
+}
+
+// --- GroupBinding / AddToGroup / RemoveFromGroup / BindGroups / GetGroups ---
+
+func (s *AccountRepoSuite) TestGroupBinding_And_BindGroups() {
+	g1 := mustCreateGroup(s.T(), s.client, &service.Group{Name: "g1"})
+	g2 := mustCreateGroup(s.T(), s.client, &service.Group{Name: "g2"})
+	account := mustCreateAccount(s.T(), s.client, &service.Account{Name: "acc"})
+
+	s.Require().NoError(s.repo.AddToGroup(s.ctx, account.ID, g1.ID, 10), "AddToGroup")
+	groups, err := s.repo.GetGroups(s.ctx, account.ID)
+	s.Require().NoError(err, "GetGroups")
+	s.Require().Len(groups, 1, "expected 1 group")
+	s.Require().Equal(g1.ID, groups[0].ID)
+
+	s.Require().NoError(s.repo.RemoveFromGroup(s.ctx, account.ID, g1.ID), "RemoveFromGroup")
+	groups, err = s.repo.GetGroups(s.ctx, account.ID)
+	s.Require().NoError(err, "GetGroups after remove")
+	s.Require().Empty(groups, "expected 0 groups after remove")
+
+	s.Require().NoError(s.repo.BindGroups(s.ctx, account.ID, []int64{g1.ID, g2.ID}), "BindGroups")
+	groups, err = s.repo.GetGroups(s.ctx, account.ID)
+	s.Require().NoError(err, "GetGroups after bind")
+	s.Require().Len(groups, 2, "expected 2 groups after bind")
+}
+
+func (s *AccountRepoSuite) TestBindGroups_EmptyList() {
+	account := mustCreateAccount(s.T(), s.client, &service.Account{Name: "acc-empty"})
+	group := mustCreateGroup(s.T(), s.client, &service.Group{Name: "g-empty"})
+	mustBindAccountToGroup(s.T(), s.client, account.ID, group.ID, 1)
+
+	s.Require().NoError(s.repo.BindGroups(s.ctx, account.ID, []int64{}), "BindGroups empty")
+
+	groups, err := s.repo.GetGroups(s.ctx, account.ID)
+	s.Require().NoError(err)
+	s.Require().Empty(groups, "expected 0 groups after binding empty list")
+}
+
+// --- Schedulable ---
+
+func (s *AccountRepoSuite) TestListSchedulable() {
+	now := time.Now()
+	group := mustCreateGroup(s.T(), s.client, &service.Group{Name: "g-sched"})
+
+	okAcc := mustCreateAccount(s.T(), s.client, &service.Account{Name: "ok", Schedulable: true})
+	mustBindAccountToGroup(s.T(), s.client, okAcc.ID, group.ID, 1)
+
+	future := now.Add(10 * time.Minute)
+	overloaded := mustCreateAccount(s.T(), s.client, &service.Account{Name: "over", Schedulable: true, OverloadUntil: &future})
+	mustBindAccountToGroup(s.T(), s.client, overloaded.ID, group.ID, 1)
+
+	sched, err := s.repo.ListSchedulable(s.ctx)
+	s.Require().NoError(err, "ListSchedulable")
+	ids := idsOfAccounts(sched)
+	s.Require().Contains(ids, okAcc.ID)
+	s.Require().NotContains(ids, overloaded.ID)
+}
+
+func (s *AccountRepoSuite) TestListSchedulableByGroupID_TimeBoundaries_And_StatusUpdates() {
+	now := time.Now()
+	group := mustCreateGroup(s.T(), s.client, &service.Group{Name: "g-sched"})
+
+	okAcc := mustCreateAccount(s.T(), s.client, &service.Account{Name: "ok", Schedulable: true})
+	mustBindAccountToGroup(s.T(), s.client, okAcc.ID, group.ID, 1)
+
+	future := now.Add(10 * time.Minute)
+	overloaded := mustCreateAccount(s.T(), s.client, &service.Account{Name: "over", Schedulable: true, OverloadUntil: &future})
+	mustBindAccountToGroup(s.T(), s.client, overloaded.ID, group.ID, 1)
+
+	rateLimited := mustCreateAccount(s.T(), s.client, &service.Account{Name: "rl", Schedulable: true})
+	mustBindAccountToGroup(s.T(), s.client, rateLimited.ID, group.ID, 1)
+	s.Require().NoError(s.repo.SetRateLimited(s.ctx, rateLimited.ID, now.Add(10*time.Minute)), "SetRateLimited")
+
+	s.Require().NoError(s.repo.SetError(s.ctx, overloaded.ID, "boom"), "SetError")
+
+	sched, err := s.repo.ListSchedulableByGroupID(s.ctx, group.ID)
+	s.Require().NoError(err, "ListSchedulableByGroupID")
+	s.Require().Len(sched, 1, "expected only ok account schedulable")
+	s.Require().Equal(okAcc.ID, sched[0].ID)
+
+	s.Require().NoError(s.repo.ClearRateLimit(s.ctx, rateLimited.ID), "ClearRateLimit")
+	sched2, err := s.repo.ListSchedulableByGroupID(s.ctx, group.ID)
+	s.Require().NoError(err, "ListSchedulableByGroupID after ClearRateLimit")
+	s.Require().Len(sched2, 2, "expected 2 schedulable accounts after ClearRateLimit")
+}
+
+func (s *AccountRepoSuite) TestListSchedulableByPlatform() {
+	mustCreateAccount(s.T(), s.client, &service.Account{Name: "a1", Platform: service.PlatformAnthropic, Schedulable: true})
+	mustCreateAccount(s.T(), s.client, &service.Account{Name: "a2", Platform: service.PlatformOpenAI, Schedulable: true})
+
+	accounts, err := s.repo.ListSchedulableByPlatform(s.ctx, service.PlatformAnthropic)
+	s.Require().NoError(err)
+	s.Require().Len(accounts, 1)
+	s.Require().Equal(service.PlatformAnthropic, accounts[0].Platform)
+}
+
+func (s *AccountRepoSuite) TestListSchedulableByGroupIDAndPlatform() {
+	group := mustCreateGroup(s.T(), s.client, &service.Group{Name: "g-sp"})
+	a1 := mustCreateAccount(s.T(), s.client, &service.Account{Name: "a1", Platform: service.PlatformAnthropic, Schedulable: true})
+	a2 := mustCreateAccount(s.T(), s.client, &service.Account{Name: "a2", Platform: service.PlatformOpenAI, Schedulable: true})
+	mustBindAccountToGroup(s.T(), s.client, a1.ID, group.ID, 1)
+	mustBindAccountToGroup(s.T(), s.client, a2.ID, group.ID, 2)
+
+	accounts, err := s.repo.ListSchedulableByGroupIDAndPlatform(s.ctx, group.ID, service.PlatformAnthropic)
+	s.Require().NoError(err)
+	s.Require().Len(accounts, 1)
+	s.Require().Equal(a1.ID, accounts[0].ID)
+}
+
+func (s *AccountRepoSuite) TestSetSchedulable() {
+	account := mustCreateAccount(s.T(), s.client, &service.Account{Name: "acc-sched", Schedulable: true})
+	cacheRecorder := &schedulerCacheRecorder{}
+	s.repo.schedulerCache = cacheRecorder
+
+	s.Require().NoError(s.repo.SetSchedulable(s.ctx, account.ID, false))
+
+	got, err := s.repo.GetByID(s.ctx, account.ID)
+	s.Require().NoError(err)
+	s.Require().False(got.Schedulable)
+	s.Require().Len(cacheRecorder.setAccounts, 1)
+	s.Require().Equal(account.ID, cacheRecorder.setAccounts[0].ID)
+}
+
+func (s *AccountRepoSuite) TestBulkUpdate_SyncSchedulerSnapshotOnDisabled() {
+	account1 := mustCreateAccount(s.T(), s.client, &service.Account{Name: "bulk-1", Status: service.StatusActive, Schedulable: true})
+	account2 := mustCreateAccount(s.T(), s.client, &service.Account{Name: "bulk-2", Status: service.StatusActive, Schedulable: true})
+	cacheRecorder := &schedulerCacheRecorder{}
+	s.repo.schedulerCache = cacheRecorder
+
+	disabled := service.StatusDisabled
+	rows, err := s.repo.BulkUpdate(s.ctx, []int64{account1.ID, account2.ID}, service.AccountBulkUpdate{
+		Status: &disabled,
+	})
+	s.Require().NoError(err)
+	s.Require().Equal(int64(2), rows)
+
+	s.Require().Len(cacheRecorder.setAccounts, 2)
+	ids := map[int64]struct{}{}
+	for _, acc := range cacheRecorder.setAccounts {
+		ids[acc.ID] = struct{}{}
+	}
+	s.Require().Contains(ids, account1.ID)
+	s.Require().Contains(ids, account2.ID)
+}
+
+// --- SetOverloaded / SetRateLimited / ClearRateLimit ---
+
+func (s *AccountRepoSuite) TestSetOverloaded() {
+	account := mustCreateAccount(s.T(), s.client, &service.Account{Name: "acc-over"})
+	until := time.Date(2025, 6, 15, 12, 0, 0, 0, time.UTC)
+
+	s.Require().NoError(s.repo.SetOverloaded(s.ctx, account.ID, until))
+
+	got, err := s.repo.GetByID(s.ctx, account.ID)
+	s.Require().NoError(err)
+	s.Require().NotNil(got.OverloadUntil)
+	s.Require().WithinDuration(until, *got.OverloadUntil, time.Second)
+}
+
+func (s *AccountRepoSuite) TestSetRateLimited() {
+	account := mustCreateAccount(s.T(), s.client, &service.Account{Name: "acc-rl"})
+	resetAt := time.Date(2025, 6, 15, 14, 0, 0, 0, time.UTC)
+
+	s.Require().NoError(s.repo.SetRateLimited(s.ctx, account.ID, resetAt))
+
+	got, err := s.repo.GetByID(s.ctx, account.ID)
+	s.Require().NoError(err)
+	s.Require().NotNil(got.RateLimitedAt)
+	s.Require().NotNil(got.RateLimitResetAt)
+	s.Require().WithinDuration(resetAt, *got.RateLimitResetAt, time.Second)
+}
+
+func (s *AccountRepoSuite) TestClearRateLimit() {
+	account := mustCreateAccount(s.T(), s.client, &service.Account{Name: "acc-clear"})
+	until := time.Now().Add(1 * time.Hour)
+	s.Require().NoError(s.repo.SetOverloaded(s.ctx, account.ID, until))
+	s.Require().NoError(s.repo.SetRateLimited(s.ctx, account.ID, until))
+
+	s.Require().NoError(s.repo.ClearRateLimit(s.ctx, account.ID))
+
+	got, err := s.repo.GetByID(s.ctx, account.ID)
+	s.Require().NoError(err)
+	s.Require().Nil(got.RateLimitedAt)
+	s.Require().Nil(got.RateLimitResetAt)
+	s.Require().Nil(got.OverloadUntil)
+}
+
+func (s *AccountRepoSuite) TestTempUnschedulableFieldsLoadedByGetByIDAndGetByIDs() {
+	acc1 := mustCreateAccount(s.T(), s.client, &service.Account{Name: "acc-temp-1"})
+	acc2 := mustCreateAccount(s.T(), s.client, &service.Account{Name: "acc-temp-2"})
+
+	until := time.Now().Add(15 * time.Minute).UTC().Truncate(time.Second)
+	reason := `{"rule":"429","matched_keyword":"too many requests"}`
+	s.Require().NoError(s.repo.SetTempUnschedulable(s.ctx, acc1.ID, until, reason))
+
+	gotByID, err := s.repo.GetByID(s.ctx, acc1.ID)
+	s.Require().NoError(err)
+	s.Require().NotNil(gotByID.TempUnschedulableUntil)
+	s.Require().WithinDuration(until, *gotByID.TempUnschedulableUntil, time.Second)
+	s.Require().Equal(reason, gotByID.TempUnschedulableReason)
+
+	gotByIDs, err := s.repo.GetByIDs(s.ctx, []int64{acc2.ID, acc1.ID})
+	s.Require().NoError(err)
+	s.Require().Len(gotByIDs, 2)
+	s.Require().Equal(acc2.ID, gotByIDs[0].ID)
+	s.Require().Nil(gotByIDs[0].TempUnschedulableUntil)
+	s.Require().Equal("", gotByIDs[0].TempUnschedulableReason)
+	s.Require().Equal(acc1.ID, gotByIDs[1].ID)
+	s.Require().NotNil(gotByIDs[1].TempUnschedulableUntil)
+	s.Require().WithinDuration(until, *gotByIDs[1].TempUnschedulableUntil, time.Second)
+	s.Require().Equal(reason, gotByIDs[1].TempUnschedulableReason)
+
+	s.Require().NoError(s.repo.ClearTempUnschedulable(s.ctx, acc1.ID))
+	cleared, err := s.repo.GetByID(s.ctx, acc1.ID)
+	s.Require().NoError(err)
+	s.Require().Nil(cleared.TempUnschedulableUntil)
+	s.Require().Equal("", cleared.TempUnschedulableReason)
+}
+
+// --- UpdateLastUsed ---
+
+func (s *AccountRepoSuite) TestUpdateLastUsed() {
+	account := mustCreateAccount(s.T(), s.client, &service.Account{Name: "acc-used"})
+	s.Require().Nil(account.LastUsedAt)
+
+	s.Require().NoError(s.repo.UpdateLastUsed(s.ctx, account.ID))
+
+	got, err := s.repo.GetByID(s.ctx, account.ID)
+	s.Require().NoError(err)
+	s.Require().NotNil(got.LastUsedAt)
+}
+
+// --- SetError ---
+
+func (s *AccountRepoSuite) TestSetError() {
+	account := mustCreateAccount(s.T(), s.client, &service.Account{Name: "acc-err", Status: service.StatusActive})
+
+	s.Require().NoError(s.repo.SetError(s.ctx, account.ID, "something went wrong"))
+
+	got, err := s.repo.GetByID(s.ctx, account.ID)
+	s.Require().NoError(err)
+	s.Require().Equal(service.StatusError, got.Status)
+	s.Require().Equal("something went wrong", got.ErrorMessage)
+}
+
+func (s *AccountRepoSuite) TestClearError_SyncSchedulerSnapshotOnRecovery() {
+	account := mustCreateAccount(s.T(), s.client, &service.Account{
+		Name:         "acc-clear-err",
+		Status:       service.StatusError,
+		ErrorMessage: "temporary error",
+	})
+	cacheRecorder := &schedulerCacheRecorder{}
+	s.repo.schedulerCache = cacheRecorder
+
+	s.Require().NoError(s.repo.ClearError(s.ctx, account.ID))
+
+	got, err := s.repo.GetByID(s.ctx, account.ID)
+	s.Require().NoError(err)
+	s.Require().Equal(service.StatusActive, got.Status)
+	s.Require().Empty(got.ErrorMessage)
+	s.Require().Len(cacheRecorder.setAccounts, 1)
+	s.Require().Equal(account.ID, cacheRecorder.setAccounts[0].ID)
+	s.Require().Equal(service.StatusActive, cacheRecorder.setAccounts[0].Status)
+}
+
+// --- UpdateSessionWindow ---
+
+func (s *AccountRepoSuite) TestUpdateSessionWindow() {
+	account := mustCreateAccount(s.T(), s.client, &service.Account{Name: "acc-win"})
+	start := time.Date(2025, 6, 15, 10, 0, 0, 0, time.UTC)
+	end := time.Date(2025, 6, 15, 15, 0, 0, 0, time.UTC)
+
+	s.Require().NoError(s.repo.UpdateSessionWindow(s.ctx, account.ID, &start, &end, "active"))
+
+	got, err := s.repo.GetByID(s.ctx, account.ID)
+	s.Require().NoError(err)
+	s.Require().NotNil(got.SessionWindowStart)
+	s.Require().NotNil(got.SessionWindowEnd)
+	s.Require().Equal("active", got.SessionWindowStatus)
+}
+
+// --- UpdateExtra ---
+
+func (s *AccountRepoSuite) TestUpdateExtra_MergesFields() {
+	account := mustCreateAccount(s.T(), s.client, &service.Account{
+		Name:  "acc-extra",
+		Extra: map[string]any{"a": "1"},
+	})
+	s.Require().NoError(s.repo.UpdateExtra(s.ctx, account.ID, map[string]any{"b": "2"}), "UpdateExtra")
+
+	got, err := s.repo.GetByID(s.ctx, account.ID)
+	s.Require().NoError(err, "GetByID")
+	s.Require().Equal("1", got.Extra["a"])
+	s.Require().Equal("2", got.Extra["b"])
+}
+
+func (s *AccountRepoSuite) TestUpdateExtra_EmptyUpdates() {
+	account := mustCreateAccount(s.T(), s.client, &service.Account{Name: "acc-extra-empty"})
+	s.Require().NoError(s.repo.UpdateExtra(s.ctx, account.ID, map[string]any{}))
+}
+
+func (s *AccountRepoSuite) TestUpdateExtra_NilExtra() {
+	account := mustCreateAccount(s.T(), s.client, &service.Account{Name: "acc-nil-extra", Extra: nil})
+	s.Require().NoError(s.repo.UpdateExtra(s.ctx, account.ID, map[string]any{"key": "val"}))
+
+	got, err := s.repo.GetByID(s.ctx, account.ID)
+	s.Require().NoError(err)
+	s.Require().Equal("val", got.Extra["key"])
+}
+
+func (s *AccountRepoSuite) TestUpdateExtra_SchedulerNeutralSkipsOutboxAndSyncsFreshSnapshot() {
+	account := mustCreateAccount(s.T(), s.client, &service.Account{
+		Name:     "acc-extra-neutral",
+		Platform: service.PlatformOpenAI,
+		Extra:    map[string]any{"codex_usage_updated_at": "old"},
+	})
+	cacheRecorder := &schedulerCacheRecorder{
+		accounts: map[int64]*service.Account{
+			account.ID: {
+				ID:       account.ID,
+				Platform: account.Platform,
+				Status:   service.StatusDisabled,
+				Extra: map[string]any{
+					"codex_usage_updated_at": "old",
+				},
+			},
+		},
+	}
+	s.repo.schedulerCache = cacheRecorder
+
+	updates := map[string]any{
+		"codex_usage_updated_at":     "2026-03-11T10:00:00Z",
+		"codex_5h_used_percent":      88.5,
+		"session_window_utilization": 0.42,
+	}
+	s.Require().NoError(s.repo.UpdateExtra(s.ctx, account.ID, updates))
+
+	got, err := s.repo.GetByID(s.ctx, account.ID)
+	s.Require().NoError(err)
+	s.Require().Equal("2026-03-11T10:00:00Z", got.Extra["codex_usage_updated_at"])
+	s.Require().Equal(88.5, got.Extra["codex_5h_used_percent"])
+	s.Require().Equal(0.42, got.Extra["session_window_utilization"])
+
+	var outboxCount int
+	s.Require().NoError(scanSingleRow(s.ctx, s.repo.sql, "SELECT COUNT(*) FROM scheduler_outbox", nil, &outboxCount))
+	s.Require().Zero(outboxCount)
+	s.Require().Len(cacheRecorder.setAccounts, 1)
+	s.Require().NotNil(cacheRecorder.accounts[account.ID])
+	s.Require().Equal(service.StatusActive, cacheRecorder.accounts[account.ID].Status)
+	s.Require().Equal("2026-03-11T10:00:00Z", cacheRecorder.accounts[account.ID].Extra["codex_usage_updated_at"])
+}
+
+func (s *AccountRepoSuite) TestUpdateExtra_ExhaustedCodexSnapshotSyncsSchedulerCache() {
+	account := mustCreateAccount(s.T(), s.client, &service.Account{
+		Name:     "acc-extra-codex-exhausted",
+		Platform: service.PlatformOpenAI,
+		Type:     service.AccountTypeOAuth,
+		Extra:    map[string]any{},
+	})
+	cacheRecorder := &schedulerCacheRecorder{}
+	s.repo.schedulerCache = cacheRecorder
+	_, err := s.repo.sql.ExecContext(s.ctx, "TRUNCATE scheduler_outbox")
+	s.Require().NoError(err)
+
+	s.Require().NoError(s.repo.UpdateExtra(s.ctx, account.ID, map[string]any{
+		"codex_7d_used_percent":        100.0,
+		"codex_7d_reset_at":            "2026-03-12T13:00:00Z",
+		"codex_7d_reset_after_seconds": 86400,
+	}))
+
+	var count int
+	err = scanSingleRow(s.ctx, s.repo.sql, "SELECT COUNT(*) FROM scheduler_outbox", nil, &count)
+	s.Require().NoError(err)
+	s.Require().Equal(0, count)
+	s.Require().Len(cacheRecorder.setAccounts, 1)
+	s.Require().Equal(account.ID, cacheRecorder.setAccounts[0].ID)
+	s.Require().Equal(service.StatusActive, cacheRecorder.setAccounts[0].Status)
+	s.Require().Equal(100.0, cacheRecorder.setAccounts[0].Extra["codex_7d_used_percent"])
+}
+
+func (s *AccountRepoSuite) TestUpdateExtra_SchedulerRelevantStillEnqueuesOutbox() {
+	account := mustCreateAccount(s.T(), s.client, &service.Account{
+		Name:     "acc-extra-mixed",
+		Platform: service.PlatformAntigravity,
+		Extra:    map[string]any{},
+	})
+	_, err := s.repo.sql.ExecContext(s.ctx, "TRUNCATE scheduler_outbox")
+	s.Require().NoError(err)
+
+	s.Require().NoError(s.repo.UpdateExtra(s.ctx, account.ID, map[string]any{
+		"mixed_scheduling":       true,
+		"codex_usage_updated_at": "2026-03-11T10:00:00Z",
+	}))
+
+	var count int
+	err = scanSingleRow(s.ctx, s.repo.sql, "SELECT COUNT(*) FROM scheduler_outbox", nil, &count)
+	s.Require().NoError(err)
+	s.Require().Equal(1, count)
+}
+
+// --- GetByCRSAccountID ---
+
+func (s *AccountRepoSuite) TestGetByCRSAccountID() {
+	crsID := "crs-12345"
+	mustCreateAccount(s.T(), s.client, &service.Account{
+		Name:  "acc-crs",
+		Extra: map[string]any{"crs_account_id": crsID},
+	})
+
+	got, err := s.repo.GetByCRSAccountID(s.ctx, crsID)
+	s.Require().NoError(err)
+	s.Require().NotNil(got)
+	s.Require().Equal("acc-crs", got.Name)
+}
+
+func (s *AccountRepoSuite) TestGetByCRSAccountID_NotFound() {
+	got, err := s.repo.GetByCRSAccountID(s.ctx, "non-existent")
+	s.Require().NoError(err)
+	s.Require().Nil(got)
+}
+
+func (s *AccountRepoSuite) TestGetByCRSAccountID_EmptyString() {
+	got, err := s.repo.GetByCRSAccountID(s.ctx, "")
+	s.Require().NoError(err)
+	s.Require().Nil(got)
+}
+
+// --- BulkUpdate ---
+
+func (s *AccountRepoSuite) TestBulkUpdate() {
+	a1 := mustCreateAccount(s.T(), s.client, &service.Account{Name: "bulk1", Priority: 1})
+	a2 := mustCreateAccount(s.T(), s.client, &service.Account{Name: "bulk2", Priority: 1})
+
+	newPriority := 99
+	affected, err := s.repo.BulkUpdate(s.ctx, []int64{a1.ID, a2.ID}, service.AccountBulkUpdate{
+		Priority: &newPriority,
+	})
+	s.Require().NoError(err)
+	s.Require().GreaterOrEqual(affected, int64(1), "expected at least one affected row")
+
+	got1, _ := s.repo.GetByID(s.ctx, a1.ID)
+	got2, _ := s.repo.GetByID(s.ctx, a2.ID)
+	s.Require().Equal(99, got1.Priority)
+	s.Require().Equal(99, got2.Priority)
+}
+
+func (s *AccountRepoSuite) TestBulkUpdate_MergeCredentials() {
+	a1 := mustCreateAccount(s.T(), s.client, &service.Account{
+		Name:        "bulk-cred",
+		Credentials: map[string]any{"existing": "value"},
+	})
+
+	_, err := s.repo.BulkUpdate(s.ctx, []int64{a1.ID}, service.AccountBulkUpdate{
+		Credentials: map[string]any{"new_key": "new_value"},
+	})
+	s.Require().NoError(err)
+
+	got, _ := s.repo.GetByID(s.ctx, a1.ID)
+	s.Require().Equal("value", got.Credentials["existing"])
+	s.Require().Equal("new_value", got.Credentials["new_key"])
+}
+
+func (s *AccountRepoSuite) TestBulkUpdate_MergeExtra() {
+	a1 := mustCreateAccount(s.T(), s.client, &service.Account{
+		Name:  "bulk-extra",
+		Extra: map[string]any{"existing": "val"},
+	})
+
+	_, err := s.repo.BulkUpdate(s.ctx, []int64{a1.ID}, service.AccountBulkUpdate{
+		Extra: map[string]any{"new_key": "new_val"},
+	})
+	s.Require().NoError(err)
+
+	got, _ := s.repo.GetByID(s.ctx, a1.ID)
+	s.Require().Equal("val", got.Extra["existing"])
+	s.Require().Equal("new_val", got.Extra["new_key"])
+}
+
+func (s *AccountRepoSuite) TestBulkUpdate_EmptyIDs() {
+	affected, err := s.repo.BulkUpdate(s.ctx, []int64{}, service.AccountBulkUpdate{})
+	s.Require().NoError(err)
+	s.Require().Zero(affected)
+}
+
+func (s *AccountRepoSuite) TestBulkUpdate_EmptyUpdates() {
+	a1 := mustCreateAccount(s.T(), s.client, &service.Account{Name: "bulk-empty"})
+
+	affected, err := s.repo.BulkUpdate(s.ctx, []int64{a1.ID}, service.AccountBulkUpdate{})
+	s.Require().NoError(err)
+	s.Require().Zero(affected)
+}
+
+func idsOfAccounts(accounts []service.Account) []int64 {
+	out := make([]int64, 0, len(accounts))
+	for i := range accounts {
+		out = append(out, accounts[i].ID)
+	}
+	return out
+}

llm-gateway-competitors/sub2api-tar/backend/internal/repository/aes_encryptor.go

@@ -0,0 +1,95 @@
+package repository
+
+import (
+	"crypto/aes"
+	"crypto/cipher"
+	"crypto/rand"
+	"encoding/base64"
+	"encoding/hex"
+	"fmt"
+	"io"
+
+	"github.com/Wei-Shaw/sub2api/internal/config"
+	"github.com/Wei-Shaw/sub2api/internal/service"
+)
+
+// AESEncryptor implements SecretEncryptor using AES-256-GCM
+type AESEncryptor struct {
+	key []byte
+}
+
+// NewAESEncryptor creates a new AES encryptor
+func NewAESEncryptor(cfg *config.Config) (service.SecretEncryptor, error) {
+	key, err := hex.DecodeString(cfg.Totp.EncryptionKey)
+	if err != nil {
+		return nil, fmt.Errorf("invalid totp encryption key: %w", err)
+	}
+
+	if len(key) != 32 {
+		return nil, fmt.Errorf("totp encryption key must be 32 bytes (64 hex chars), got %d bytes", len(key))
+	}
+
+	return &AESEncryptor{key: key}, nil
+}
+
+// Encrypt encrypts plaintext using AES-256-GCM
+// Output format: base64(nonce + ciphertext + tag)
+func (e *AESEncryptor) Encrypt(plaintext string) (string, error) {
+	block, err := aes.NewCipher(e.key)
+	if err != nil {
+		return "", fmt.Errorf("create cipher: %w", err)
+	}
+
+	gcm, err := cipher.NewGCM(block)
+	if err != nil {
+		return "", fmt.Errorf("create gcm: %w", err)
+	}
+
+	// Generate a random nonce
+	nonce := make([]byte, gcm.NonceSize())
+	if _, err := io.ReadFull(rand.Reader, nonce); err != nil {
+		return "", fmt.Errorf("generate nonce: %w", err)
+	}
+
+	// Encrypt the plaintext
+	// Seal appends the ciphertext and tag to the nonce
+	ciphertext := gcm.Seal(nonce, nonce, []byte(plaintext), nil)
+
+	// Encode as base64
+	return base64.StdEncoding.EncodeToString(ciphertext), nil
+}
+
+// Decrypt decrypts ciphertext using AES-256-GCM
+func (e *AESEncryptor) Decrypt(ciphertext string) (string, error) {
+	// Decode from base64
+	data, err := base64.StdEncoding.DecodeString(ciphertext)
+	if err != nil {
+		return "", fmt.Errorf("decode base64: %w", err)
+	}
+
+	block, err := aes.NewCipher(e.key)
+	if err != nil {
+		return "", fmt.Errorf("create cipher: %w", err)
+	}
+
+	gcm, err := cipher.NewGCM(block)
+	if err != nil {
+		return "", fmt.Errorf("create gcm: %w", err)
+	}
+
+	nonceSize := gcm.NonceSize()
+	if len(data) < nonceSize {
+		return "", fmt.Errorf("ciphertext too short")
+	}
+
+	// Extract nonce and ciphertext
+	nonce, ciphertextData := data[:nonceSize], data[nonceSize:]
+
+	// Decrypt
+	plaintext, err := gcm.Open(nil, nonce, ciphertextData, nil)
+	if err != nil {
+		return "", fmt.Errorf("decrypt: %w", err)
+	}
+
+	return string(plaintext), nil
+}

llm-gateway-competitors/sub2api-tar/backend/internal/repository/allowed_groups_contract_integration_test.go

@@ -0,0 +1,145 @@
+//go:build integration
+
+package repository
+
+import (
+	"context"
+	"fmt"
+	"strings"
+	"testing"
+
+	"github.com/Wei-Shaw/sub2api/internal/service"
+	"github.com/stretchr/testify/require"
+)
+
+func uniqueTestValue(t *testing.T, prefix string) string {
+	t.Helper()
+	safeName := strings.NewReplacer("/", "_", " ", "_").Replace(t.Name())
+	return fmt.Sprintf("%s-%s", prefix, safeName)
+}
+
+func TestUserRepository_RemoveGroupFromAllowedGroups_RemovesAllOccurrences(t *testing.T) {
+	ctx := context.Background()
+	tx := testEntTx(t)
+	entClient := tx.Client()
+
+	targetGroup, err := entClient.Group.Create().
+		SetName(uniqueTestValue(t, "target-group")).
+		SetStatus(service.StatusActive).
+		Save(ctx)
+	require.NoError(t, err)
+	otherGroup, err := entClient.Group.Create().
+		SetName(uniqueTestValue(t, "other-group")).
+		SetStatus(service.StatusActive).
+		Save(ctx)
+	require.NoError(t, err)
+
+	repo := newUserRepositoryWithSQL(entClient, tx)
+
+	u1 := &service.User{
+		Email:         uniqueTestValue(t, "u1") + "@example.com",
+		PasswordHash:  "test-password-hash",
+		Role:          service.RoleUser,
+		Status:        service.StatusActive,
+		Concurrency:   5,
+		AllowedGroups: []int64{targetGroup.ID, otherGroup.ID},
+	}
+	require.NoError(t, repo.Create(ctx, u1))
+
+	u2 := &service.User{
+		Email:         uniqueTestValue(t, "u2") + "@example.com",
+		PasswordHash:  "test-password-hash",
+		Role:          service.RoleUser,
+		Status:        service.StatusActive,
+		Concurrency:   5,
+		AllowedGroups: []int64{targetGroup.ID},
+	}
+	require.NoError(t, repo.Create(ctx, u2))
+
+	u3 := &service.User{
+		Email:         uniqueTestValue(t, "u3") + "@example.com",
+		PasswordHash:  "test-password-hash",
+		Role:          service.RoleUser,
+		Status:        service.StatusActive,
+		Concurrency:   5,
+		AllowedGroups: []int64{otherGroup.ID},
+	}
+	require.NoError(t, repo.Create(ctx, u3))
+
+	affected, err := repo.RemoveGroupFromAllowedGroups(ctx, targetGroup.ID)
+	require.NoError(t, err)
+	require.Equal(t, int64(2), affected)
+
+	u1After, err := repo.GetByID(ctx, u1.ID)
+	require.NoError(t, err)
+	require.NotContains(t, u1After.AllowedGroups, targetGroup.ID)
+	require.Contains(t, u1After.AllowedGroups, otherGroup.ID)
+
+	u2After, err := repo.GetByID(ctx, u2.ID)
+	require.NoError(t, err)
+	require.NotContains(t, u2After.AllowedGroups, targetGroup.ID)
+}
+
+func TestGroupRepository_DeleteCascade_RemovesAllowedGroupsAndClearsApiKeys(t *testing.T) {
+	ctx := context.Background()
+	tx := testEntTx(t)
+	entClient := tx.Client()
+
+	targetGroup, err := entClient.Group.Create().
+		SetName(uniqueTestValue(t, "delete-cascade-target")).
+		SetStatus(service.StatusActive).
+		Save(ctx)
+	require.NoError(t, err)
+	otherGroup, err := entClient.Group.Create().
+		SetName(uniqueTestValue(t, "delete-cascade-other")).
+		SetStatus(service.StatusActive).
+		Save(ctx)
+	require.NoError(t, err)
+
+	userRepo := newUserRepositoryWithSQL(entClient, tx)
+	groupRepo := newGroupRepositoryWithSQL(entClient, tx)
+	apiKeyRepo := newAPIKeyRepositoryWithSQL(entClient, tx)
+
+	u := &service.User{
+		Email:         uniqueTestValue(t, "cascade-user") + "@example.com",
+		PasswordHash:  "test-password-hash",
+		Role:          service.RoleUser,
+		Status:        service.StatusActive,
+		Concurrency:   5,
+		AllowedGroups: []int64{targetGroup.ID, otherGroup.ID},
+	}
+	require.NoError(t, userRepo.Create(ctx, u))
+
+	key := &service.APIKey{
+		UserID:  u.ID,
+		Key:     uniqueTestValue(t, "sk-test-delete-cascade"),
+		Name:    "test key",
+		GroupID: &targetGroup.ID,
+		Status:  service.StatusActive,
+	}
+	require.NoError(t, apiKeyRepo.Create(ctx, key))
+
+	_, err = groupRepo.DeleteCascade(ctx, targetGroup.ID)
+	require.NoError(t, err)
+
+	// Deleted group should be hidden by default queries (soft-delete semantics).
+	_, err = groupRepo.GetByID(ctx, targetGroup.ID)
+	require.ErrorIs(t, err, service.ErrGroupNotFound)
+
+	activeGroups, err := groupRepo.ListActive(ctx)
+	require.NoError(t, err)
+	for _, g := range activeGroups {
+		require.NotEqual(t, targetGroup.ID, g.ID)
+	}
+
+	// User.allowed_groups should no longer include the deleted group.
+	uAfter, err := userRepo.GetByID(ctx, u.ID)
+	require.NoError(t, err)
+	require.NotContains(t, uAfter.AllowedGroups, targetGroup.ID)
+	require.Contains(t, uAfter.AllowedGroups, otherGroup.ID)
+
+	// API keys bound to the deleted group should have group_id cleared.
+	keyAfter, err := apiKeyRepo.GetByID(ctx, key.ID)
+	require.NoError(t, err)
+	require.Nil(t, keyAfter.GroupID)
+}

llm-gateway-competitors/sub2api-tar/backend/internal/repository/announcement_read_repo.go

@@ -0,0 +1,83 @@
+package repository
+
+import (
+	"context"
+	"time"
+
+	dbent "github.com/Wei-Shaw/sub2api/ent"
+	"github.com/Wei-Shaw/sub2api/ent/announcementread"
+	"github.com/Wei-Shaw/sub2api/internal/service"
+)
+
+type announcementReadRepository struct {
+	client *dbent.Client
+}
+
+func NewAnnouncementReadRepository(client *dbent.Client) service.AnnouncementReadRepository {
+	return &announcementReadRepository{client: client}
+}
+
+func (r *announcementReadRepository) MarkRead(ctx context.Context, announcementID, userID int64, readAt time.Time) error {
+	client := clientFromContext(ctx, r.client)
+	return client.AnnouncementRead.Create().
+		SetAnnouncementID(announcementID).
+		SetUserID(userID).
+		SetReadAt(readAt).
+		OnConflictColumns(announcementread.FieldAnnouncementID, announcementread.FieldUserID).
+		DoNothing().
+		Exec(ctx)
+}
+
+func (r *announcementReadRepository) GetReadMapByUser(ctx context.Context, userID int64, announcementIDs []int64) (map[int64]time.Time, error) {
+	if len(announcementIDs) == 0 {
+		return map[int64]time.Time{}, nil
+	}
+
+	rows, err := r.client.AnnouncementRead.Query().
+		Where(
+			announcementread.UserIDEQ(userID),
+			announcementread.AnnouncementIDIn(announcementIDs...),
+		).
+		All(ctx)
+	if err != nil {
+		return nil, err
+	}
+
+	out := make(map[int64]time.Time, len(rows))
+	for i := range rows {
+		out[rows[i].AnnouncementID] = rows[i].ReadAt
+	}
+	return out, nil
+}
+
+func (r *announcementReadRepository) GetReadMapByUsers(ctx context.Context, announcementID int64, userIDs []int64) (map[int64]time.Time, error) {
+	if len(userIDs) == 0 {
+		return map[int64]time.Time{}, nil
+	}
+
+	rows, err := r.client.AnnouncementRead.Query().
+		Where(
+			announcementread.AnnouncementIDEQ(announcementID),
+			announcementread.UserIDIn(userIDs...),
+		).
+		All(ctx)
+	if err != nil {
+		return nil, err
+	}
+
+	out := make(map[int64]time.Time, len(rows))
+	for i := range rows {
+		out[rows[i].UserID] = rows[i].ReadAt
+	}
+	return out, nil
+}
+
+func (r *announcementReadRepository) CountByAnnouncementID(ctx context.Context, announcementID int64) (int64, error) {
+	count, err := r.client.AnnouncementRead.Query().
+		Where(announcementread.AnnouncementIDEQ(announcementID)).
+		Count(ctx)
+	if err != nil {
+		return 0, err
+	}
+	return int64(count), nil
+}

llm-gateway-competitors/sub2api-tar/backend/internal/repository/announcement_repo.go

@@ -0,0 +1,197 @@
+package repository
+
+import (
+	"context"
+	"time"
+
+	dbent "github.com/Wei-Shaw/sub2api/ent"
+	"github.com/Wei-Shaw/sub2api/ent/announcement"
+	"github.com/Wei-Shaw/sub2api/internal/pkg/pagination"
+	"github.com/Wei-Shaw/sub2api/internal/service"
+)
+
+type announcementRepository struct {
+	client *dbent.Client
+}
+
+func NewAnnouncementRepository(client *dbent.Client) service.AnnouncementRepository {
+	return &announcementRepository{client: client}
+}
+
+func (r *announcementRepository) Create(ctx context.Context, a *service.Announcement) error {
+	client := clientFromContext(ctx, r.client)
+	builder := client.Announcement.Create().
+		SetTitle(a.Title).
+		SetContent(a.Content).
+		SetStatus(a.Status).
+		SetNotifyMode(a.NotifyMode).
+		SetTargeting(a.Targeting)
+
+	if a.StartsAt != nil {
+		builder.SetStartsAt(*a.StartsAt)
+	}
+	if a.EndsAt != nil {
+		builder.SetEndsAt(*a.EndsAt)
+	}
+	if a.CreatedBy != nil {
+		builder.SetCreatedBy(*a.CreatedBy)
+	}
+	if a.UpdatedBy != nil {
+		builder.SetUpdatedBy(*a.UpdatedBy)
+	}
+
+	created, err := builder.Save(ctx)
+	if err != nil {
+		return err
+	}
+
+	applyAnnouncementEntityToService(a, created)
+	return nil
+}
+
+func (r *announcementRepository) GetByID(ctx context.Context, id int64) (*service.Announcement, error) {
+	m, err := r.client.Announcement.Query().
+		Where(announcement.IDEQ(id)).
+		Only(ctx)
+	if err != nil {
+		return nil, translatePersistenceError(err, service.ErrAnnouncementNotFound, nil)
+	}
+	return announcementEntityToService(m), nil
+}
+
+func (r *announcementRepository) Update(ctx context.Context, a *service.Announcement) error {
+	client := clientFromContext(ctx, r.client)
+	builder := client.Announcement.UpdateOneID(a.ID).
+		SetTitle(a.Title).
+		SetContent(a.Content).
+		SetStatus(a.Status).
+		SetNotifyMode(a.NotifyMode).
+		SetTargeting(a.Targeting)
+
+	if a.StartsAt != nil {
+		builder.SetStartsAt(*a.StartsAt)
+	} else {
+		builder.ClearStartsAt()
+	}
+	if a.EndsAt != nil {
+		builder.SetEndsAt(*a.EndsAt)
+	} else {
+		builder.ClearEndsAt()
+	}
+	if a.CreatedBy != nil {
+		builder.SetCreatedBy(*a.CreatedBy)
+	} else {
+		builder.ClearCreatedBy()
+	}
+	if a.UpdatedBy != nil {
+		builder.SetUpdatedBy(*a.UpdatedBy)
+	} else {
+		builder.ClearUpdatedBy()
+	}
+
+	updated, err := builder.Save(ctx)
+	if err != nil {
+		return translatePersistenceError(err, service.ErrAnnouncementNotFound, nil)
+	}
+
+	a.UpdatedAt = updated.UpdatedAt
+	return nil
+}
+
+func (r *announcementRepository) Delete(ctx context.Context, id int64) error {
+	client := clientFromContext(ctx, r.client)
+	_, err := client.Announcement.Delete().Where(announcement.IDEQ(id)).Exec(ctx)
+	return err
+}
+
+func (r *announcementRepository) List(
+	ctx context.Context,
+	params pagination.PaginationParams,
+	filters service.AnnouncementListFilters,
+) ([]service.Announcement, *pagination.PaginationResult, error) {
+	q := r.client.Announcement.Query()
+
+	if filters.Status != "" {
+		q = q.Where(announcement.StatusEQ(filters.Status))
+	}
+	if filters.Search != "" {
+		q = q.Where(
+			announcement.Or(
+				announcement.TitleContainsFold(filters.Search),
+				announcement.ContentContainsFold(filters.Search),
+			),
+		)
+	}
+
+	total, err := q.Count(ctx)
+	if err != nil {
+		return nil, nil, err
+	}
+
+	items, err := q.
+		Offset(params.Offset()).
+		Limit(params.Limit()).
+		Order(dbent.Desc(announcement.FieldID)).
+		All(ctx)
+	if err != nil {
+		return nil, nil, err
+	}
+
+	out := announcementEntitiesToService(items)
+	return out, paginationResultFromTotal(int64(total), params), nil
+}
+
+func (r *announcementRepository) ListActive(ctx context.Context, now time.Time) ([]service.Announcement, error) {
+	q := r.client.Announcement.Query().
+		Where(
+			announcement.StatusEQ(service.AnnouncementStatusActive),
+			announcement.Or(announcement.StartsAtIsNil(), announcement.StartsAtLTE(now)),
+			announcement.Or(announcement.EndsAtIsNil(), announcement.EndsAtGT(now)),
+		).
+		Order(dbent.Desc(announcement.FieldID))
+
+	items, err := q.All(ctx)
+	if err != nil {
+		return nil, err
+	}
+	return announcementEntitiesToService(items), nil
+}
+
+func applyAnnouncementEntityToService(dst *service.Announcement, src *dbent.Announcement) {
+	if dst == nil || src == nil {
+		return
+	}
+	dst.ID = src.ID
+	dst.CreatedAt = src.CreatedAt
+	dst.UpdatedAt = src.UpdatedAt
+}
+
+func announcementEntityToService(m *dbent.Announcement) *service.Announcement {
+	if m == nil {
+		return nil
+	}
+	return &service.Announcement{
+		ID:         m.ID,
+		Title:      m.Title,
+		Content:    m.Content,
+		Status:     m.Status,
+		NotifyMode: m.NotifyMode,
+		Targeting:  m.Targeting,
+		StartsAt:   m.StartsAt,
+		EndsAt:     m.EndsAt,
+		CreatedBy:  m.CreatedBy,
+		UpdatedBy:  m.UpdatedBy,
+		CreatedAt:  m.CreatedAt,
+		UpdatedAt:  m.UpdatedAt,
+	}
+}
+
+func announcementEntitiesToService(models []*dbent.Announcement) []service.Announcement {
+	out := make([]service.Announcement, 0, len(models))
+	for i := range models {
+		if s := announcementEntityToService(models[i]); s != nil {
+			out = append(out, *s)
+		}
+	}
+	return out
+}

llm-gateway-competitors/sub2api-tar/backend/internal/repository/api_key_cache.go

@@ -0,0 +1,137 @@
+package repository
+
+import (
+	"context"
+	"encoding/json"
+	"errors"
+	"fmt"
+	"log"
+	"time"
+
+	"github.com/Wei-Shaw/sub2api/internal/service"
+	"github.com/redis/go-redis/v9"
+)
+
+const (
+	apiKeyRateLimitKeyPrefix   = "apikey:ratelimit:"
+	apiKeyRateLimitDuration    = 24 * time.Hour
+	apiKeyAuthCachePrefix      = "apikey:auth:"
+	authCacheInvalidateChannel = "auth:cache:invalidate"
+)
+
+// apiKeyRateLimitKey generates the Redis key for API key creation rate limiting.
+func apiKeyRateLimitKey(userID int64) string {
+	return fmt.Sprintf("%s%d", apiKeyRateLimitKeyPrefix, userID)
+}
+
+func apiKeyAuthCacheKey(key string) string {
+	return fmt.Sprintf("%s%s", apiKeyAuthCachePrefix, key)
+}
+
+type apiKeyCache struct {
+	rdb *redis.Client
+}
+
+func NewAPIKeyCache(rdb *redis.Client) service.APIKeyCache {
+	return &apiKeyCache{rdb: rdb}
+}
+
+func (c *apiKeyCache) GetCreateAttemptCount(ctx context.Context, userID int64) (int, error) {
+	key := apiKeyRateLimitKey(userID)
+	count, err := c.rdb.Get(ctx, key).Int()
+	if errors.Is(err, redis.Nil) {
+		return 0, nil
+	}
+	return count, err
+}
+
+func (c *apiKeyCache) IncrementCreateAttemptCount(ctx context.Context, userID int64) error {
+	key := apiKeyRateLimitKey(userID)
+	pipe := c.rdb.Pipeline()
+	pipe.Incr(ctx, key)
+	pipe.Expire(ctx, key, apiKeyRateLimitDuration)
+	_, err := pipe.Exec(ctx)
+	return err
+}
+
+func (c *apiKeyCache) DeleteCreateAttemptCount(ctx context.Context, userID int64) error {
+	key := apiKeyRateLimitKey(userID)
+	return c.rdb.Del(ctx, key).Err()
+}
+
+func (c *apiKeyCache) IncrementDailyUsage(ctx context.Context, apiKey string) error {
+	return c.rdb.Incr(ctx, apiKey).Err()
+}
+
+func (c *apiKeyCache) SetDailyUsageExpiry(ctx context.Context, apiKey string, ttl time.Duration) error {
+	return c.rdb.Expire(ctx, apiKey, ttl).Err()
+}
+
+func (c *apiKeyCache) GetAuthCache(ctx context.Context, key string) (*service.APIKeyAuthCacheEntry, error) {
+	val, err := c.rdb.Get(ctx, apiKeyAuthCacheKey(key)).Bytes()
+	if err != nil {
+		return nil, err
+	}
+	var entry service.APIKeyAuthCacheEntry
+	if err := json.Unmarshal(val, &entry); err != nil {
+		return nil, err
+	}
+	return &entry, nil
+}
+
+func (c *apiKeyCache) SetAuthCache(ctx context.Context, key string, entry *service.APIKeyAuthCacheEntry, ttl time.Duration) error {
+	if entry == nil {
+		return nil
+	}
+	payload, err := json.Marshal(entry)
+	if err != nil {
+		return err
+	}
+	return c.rdb.Set(ctx, apiKeyAuthCacheKey(key), payload, ttl).Err()
+}
+
+func (c *apiKeyCache) DeleteAuthCache(ctx context.Context, key string) error {
+	return c.rdb.Del(ctx, apiKeyAuthCacheKey(key)).Err()
+}
+
+// PublishAuthCacheInvalidation publishes a cache invalidation message to all instances
+func (c *apiKeyCache) PublishAuthCacheInvalidation(ctx context.Context, cacheKey string) error {
+	return c.rdb.Publish(ctx, authCacheInvalidateChannel, cacheKey).Err()
+}
+
+// SubscribeAuthCacheInvalidation subscribes to cache invalidation messages
+func (c *apiKeyCache) SubscribeAuthCacheInvalidation(ctx context.Context, handler func(cacheKey string)) error {
+	pubsub := c.rdb.Subscribe(ctx, authCacheInvalidateChannel)
+
+	// Verify subscription is working
+	_, err := pubsub.Receive(ctx)
+	if err != nil {
+		_ = pubsub.Close()
+		return fmt.Errorf("subscribe to auth cache invalidation: %w", err)
+	}
+
+	go func() {
+		defer func() {
+			if err := pubsub.Close(); err != nil {
+				log.Printf("Warning: failed to close auth cache invalidation pubsub: %v", err)
+			}
+		}()
+
+		ch := pubsub.Channel()
+		for {
+			select {
+			case <-ctx.Done():
+				return
+			case msg, ok := <-ch:
+				if !ok {
+					return
+				}
+				if msg != nil {
+					handler(msg.Payload)
+				}
+			}
+		}
+	}()
+
+	return nil
+}

llm-gateway-competitors/sub2api-tar/backend/internal/repository/api_key_cache_integration_test.go

@@ -0,0 +1,127 @@
+//go:build integration
+
+package repository
+
+import (
+	"context"
+	"fmt"
+	"testing"
+	"time"
+
+	"github.com/redis/go-redis/v9"
+	"github.com/stretchr/testify/require"
+	"github.com/stretchr/testify/suite"
+)
+
+type ApiKeyCacheSuite struct {
+	IntegrationRedisSuite
+}
+
+func (s *ApiKeyCacheSuite) TestCreateAttemptCount() {
+	tests := []struct {
+		name string
+		fn   func(ctx context.Context, rdb *redis.Client, cache *apiKeyCache)
+	}{
+		{
+			name: "missing_key_returns_zero_nil",
+			fn: func(ctx context.Context, rdb *redis.Client, cache *apiKeyCache) {
+				userID := int64(1)
+
+				count, err := cache.GetCreateAttemptCount(ctx, userID)
+
+				require.NoError(s.T(), err, "expected nil error for missing key")
+				require.Equal(s.T(), 0, count, "expected zero count for missing key")
+			},
+		},
+		{
+			name: "increment_increases_count_and_sets_ttl",
+			fn: func(ctx context.Context, rdb *redis.Client, cache *apiKeyCache) {
+				userID := int64(1)
+				key := fmt.Sprintf("%s%d", apiKeyRateLimitKeyPrefix, userID)
+
+				require.NoError(s.T(), cache.IncrementCreateAttemptCount(ctx, userID), "IncrementCreateAttemptCount")
+				require.NoError(s.T(), cache.IncrementCreateAttemptCount(ctx, userID), "IncrementCreateAttemptCount 2")
+
+				count, err := cache.GetCreateAttemptCount(ctx, userID)
+				require.NoError(s.T(), err, "GetCreateAttemptCount")
+				require.Equal(s.T(), 2, count, "count mismatch")
+
+				ttl, err := rdb.TTL(ctx, key).Result()
+				require.NoError(s.T(), err, "TTL")
+				s.AssertTTLWithin(ttl, 1*time.Second, apiKeyRateLimitDuration)
+			},
+		},
+		{
+			name: "delete_removes_key",
+			fn: func(ctx context.Context, rdb *redis.Client, cache *apiKeyCache) {
+				userID := int64(1)
+
+				require.NoError(s.T(), cache.IncrementCreateAttemptCount(ctx, userID))
+				require.NoError(s.T(), cache.DeleteCreateAttemptCount(ctx, userID), "DeleteCreateAttemptCount")
+
+				count, err := cache.GetCreateAttemptCount(ctx, userID)
+				require.NoError(s.T(), err, "expected nil error after delete")
+				require.Equal(s.T(), 0, count, "expected zero count after delete")
+			},
+		},
+	}
+
+	for _, tt := range tests {
+		s.Run(tt.name, func() {
+			// 每个 case 重新获取隔离资源
+			rdb := testRedis(s.T())
+			cache := &apiKeyCache{rdb: rdb}
+			ctx := context.Background()
+
+			tt.fn(ctx, rdb, cache)
+		})
+	}
+}
+
+func (s *ApiKeyCacheSuite) TestDailyUsage() {
+	tests := []struct {
+		name string
+		fn   func(ctx context.Context, rdb *redis.Client, cache *apiKeyCache)
+	}{
+		{
+			name: "increment_increases_count",
+			fn: func(ctx context.Context, rdb *redis.Client, cache *apiKeyCache) {
+				dailyKey := "daily:sk-test"
+
+				require.NoError(s.T(), cache.IncrementDailyUsage(ctx, dailyKey), "IncrementDailyUsage")
+				require.NoError(s.T(), cache.IncrementDailyUsage(ctx, dailyKey), "IncrementDailyUsage 2")
+
+				n, err := rdb.Get(ctx, dailyKey).Int()
+				require.NoError(s.T(), err, "Get dailyKey")
+				require.Equal(s.T(), 2, n, "expected daily usage=2")
+			},
+		},
+		{
+			name: "set_expiry_sets_ttl",
+			fn: func(ctx context.Context, rdb *redis.Client, cache *apiKeyCache) {
+				dailyKey := "daily:sk-test-expiry"
+
+				require.NoError(s.T(), cache.IncrementDailyUsage(ctx, dailyKey))
+				require.NoError(s.T(), cache.SetDailyUsageExpiry(ctx, dailyKey, 1*time.Hour), "SetDailyUsageExpiry")
+
+				ttl, err := rdb.TTL(ctx, dailyKey).Result()
+				require.NoError(s.T(), err, "TTL dailyKey")
+				require.Greater(s.T(), ttl, time.Duration(0), "expected ttl > 0")
+			},
+		},
+	}
+
+	for _, tt := range tests {
+		s.Run(tt.name, func() {
+			rdb := testRedis(s.T())
+			cache := &apiKeyCache{rdb: rdb}
+			ctx := context.Background()
+
+			tt.fn(ctx, rdb, cache)
+		})
+	}
+}
+
+func TestApiKeyCacheSuite(t *testing.T) {
+	suite.Run(t, new(ApiKeyCacheSuite))
+}

llm-gateway-competitors/sub2api-tar/backend/internal/repository/api_key_cache_test.go

@@ -0,0 +1,46 @@
+//go:build unit
+
+package repository
+
+import (
+	"math"
+	"testing"
+
+	"github.com/stretchr/testify/require"
+)
+
+func TestApiKeyRateLimitKey(t *testing.T) {
+	tests := []struct {
+		name     string
+		userID   int64
+		expected string
+	}{
+		{
+			name:     "normal_user_id",
+			userID:   123,
+			expected: "apikey:ratelimit:123",
+		},
+		{
+			name:     "zero_user_id",
+			userID:   0,
+			expected: "apikey:ratelimit:0",
+		},
+		{
+			name:     "negative_user_id",
+			userID:   -1,
+			expected: "apikey:ratelimit:-1",
+		},
+		{
+			name:     "max_int64",
+			userID:   math.MaxInt64,
+			expected: "apikey:ratelimit:9223372036854775807",
+		},
+	}
+
+	for _, tc := range tests {
+		t.Run(tc.name, func(t *testing.T) {
+			got := apiKeyRateLimitKey(tc.userID)
+			require.Equal(t, tc.expected, got)
+		})
+	}
+}

llm-gateway-competitors/sub2api-tar/backend/internal/repository/api_key_repo.go

@@ -0,0 +1,662 @@
+package repository
+
+import (
+	"context"
+	"database/sql"
+	"time"
+
+	dbent "github.com/Wei-Shaw/sub2api/ent"
+	"github.com/Wei-Shaw/sub2api/ent/apikey"
+	"github.com/Wei-Shaw/sub2api/ent/group"
+	"github.com/Wei-Shaw/sub2api/ent/schema/mixins"
+	"github.com/Wei-Shaw/sub2api/ent/user"
+	"github.com/Wei-Shaw/sub2api/internal/service"
+
+	"github.com/Wei-Shaw/sub2api/internal/pkg/pagination"
+)
+
+type apiKeyRepository struct {
+	client *dbent.Client
+	sql    sqlExecutor
+}
+
+func NewAPIKeyRepository(client *dbent.Client, sqlDB *sql.DB) service.APIKeyRepository {
+	return newAPIKeyRepositoryWithSQL(client, sqlDB)
+}
+
+func newAPIKeyRepositoryWithSQL(client *dbent.Client, sqlq sqlExecutor) *apiKeyRepository {
+	return &apiKeyRepository{client: client, sql: sqlq}
+}
+
+func (r *apiKeyRepository) activeQuery() *dbent.APIKeyQuery {
+	// 默认过滤已软删除记录，避免删除后仍被查询到。
+	return r.client.APIKey.Query().Where(apikey.DeletedAtIsNil())
+}
+
+func (r *apiKeyRepository) Create(ctx context.Context, key *service.APIKey) error {
+	builder := r.client.APIKey.Create().
+		SetUserID(key.UserID).
+		SetKey(key.Key).
+		SetName(key.Name).
+		SetStatus(key.Status).
+		SetNillableGroupID(key.GroupID).
+		SetNillableLastUsedAt(key.LastUsedAt).
+		SetQuota(key.Quota).
+		SetQuotaUsed(key.QuotaUsed).
+		SetNillableExpiresAt(key.ExpiresAt).
+		SetRateLimit5h(key.RateLimit5h).
+		SetRateLimit1d(key.RateLimit1d).
+		SetRateLimit7d(key.RateLimit7d)
+
+	if len(key.IPWhitelist) > 0 {
+		builder.SetIPWhitelist(key.IPWhitelist)
+	}
+	if len(key.IPBlacklist) > 0 {
+		builder.SetIPBlacklist(key.IPBlacklist)
+	}
+
+	created, err := builder.Save(ctx)
+	if err == nil {
+		key.ID = created.ID
+		key.LastUsedAt = created.LastUsedAt
+		key.CreatedAt = created.CreatedAt
+		key.UpdatedAt = created.UpdatedAt
+	}
+	return translatePersistenceError(err, nil, service.ErrAPIKeyExists)
+}
+
+func (r *apiKeyRepository) GetByID(ctx context.Context, id int64) (*service.APIKey, error) {
+	m, err := r.activeQuery().
+		Where(apikey.IDEQ(id)).
+		WithUser().
+		WithGroup().
+		Only(ctx)
+	if err != nil {
+		if dbent.IsNotFound(err) {
+			return nil, service.ErrAPIKeyNotFound
+		}
+		return nil, err
+	}
+	return apiKeyEntityToService(m), nil
+}
+
+// GetKeyAndOwnerID 根据 API Key ID 获取其 key 与所有者（用户）ID。
+// 相比 GetByID，此方法性能更优，因为：
+//   - 使用 Select() 只查询必要字段，减少数据传输量
+//   - 不加载完整的 API Key 实体及其关联数据（User、Group 等）
+//   - 适用于删除等只需 key 与用户 ID 的场景
+func (r *apiKeyRepository) GetKeyAndOwnerID(ctx context.Context, id int64) (string, int64, error) {
+	m, err := r.activeQuery().
+		Where(apikey.IDEQ(id)).
+		Select(apikey.FieldKey, apikey.FieldUserID).
+		Only(ctx)
+	if err != nil {
+		if dbent.IsNotFound(err) {
+			return "", 0, service.ErrAPIKeyNotFound
+		}
+		return "", 0, err
+	}
+	return m.Key, m.UserID, nil
+}
+
+func (r *apiKeyRepository) GetByKey(ctx context.Context, key string) (*service.APIKey, error) {
+	m, err := r.activeQuery().
+		Where(apikey.KeyEQ(key)).
+		WithUser().
+		WithGroup().
+		Only(ctx)
+	if err != nil {
+		if dbent.IsNotFound(err) {
+			return nil, service.ErrAPIKeyNotFound
+		}
+		return nil, err
+	}
+	return apiKeyEntityToService(m), nil
+}
+
+func (r *apiKeyRepository) GetByKeyForAuth(ctx context.Context, key string) (*service.APIKey, error) {
+	m, err := r.activeQuery().
+		Where(apikey.KeyEQ(key)).
+		Select(
+			apikey.FieldID,
+			apikey.FieldUserID,
+			apikey.FieldGroupID,
+			apikey.FieldStatus,
+			apikey.FieldIPWhitelist,
+			apikey.FieldIPBlacklist,
+			apikey.FieldQuota,
+			apikey.FieldQuotaUsed,
+			apikey.FieldExpiresAt,
+			apikey.FieldRateLimit5h,
+			apikey.FieldRateLimit1d,
+			apikey.FieldRateLimit7d,
+		).
+		WithUser(func(q *dbent.UserQuery) {
+			q.Select(
+				user.FieldID,
+				user.FieldStatus,
+				user.FieldRole,
+				user.FieldBalance,
+				user.FieldConcurrency,
+			)
+		}).
+		WithGroup(func(q *dbent.GroupQuery) {
+			q.Select(
+				group.FieldID,
+				group.FieldName,
+				group.FieldPlatform,
+				group.FieldStatus,
+				group.FieldSubscriptionType,
+				group.FieldRateMultiplier,
+				group.FieldDailyLimitUsd,
+				group.FieldWeeklyLimitUsd,
+				group.FieldMonthlyLimitUsd,
+				group.FieldImagePrice1k,
+				group.FieldImagePrice2k,
+				group.FieldImagePrice4k,
+				group.FieldSoraImagePrice360,
+				group.FieldSoraImagePrice540,
+				group.FieldSoraVideoPricePerRequest,
+				group.FieldSoraVideoPricePerRequestHd,
+				group.FieldClaudeCodeOnly,
+				group.FieldFallbackGroupID,
+				group.FieldFallbackGroupIDOnInvalidRequest,
+				group.FieldModelRoutingEnabled,
+				group.FieldModelRouting,
+				group.FieldMcpXMLInject,
+				group.FieldSupportedModelScopes,
+				group.FieldAllowMessagesDispatch,
+				group.FieldDefaultMappedModel,
+			)
+		}).
+		Only(ctx)
+	if err != nil {
+		if dbent.IsNotFound(err) {
+			return nil, service.ErrAPIKeyNotFound
+		}
+		return nil, err
+	}
+	return apiKeyEntityToService(m), nil
+}
+
+func (r *apiKeyRepository) Update(ctx context.Context, key *service.APIKey) error {
+	// 使用原子操作：将软删除检查与更新合并到同一语句，避免竞态条件。
+	// 之前的实现先检查 Exist 再 UpdateOneID，若在两步之间发生软删除，
+	// 则会更新已删除的记录。
+	// 这里选择 Update().Where()，确保只有未软删除记录能被更新。
+	// 同时显式设置 updated_at，避免二次查询带来的并发可见性问题。
+	client := clientFromContext(ctx, r.client)
+	now := time.Now()
+	builder := client.APIKey.Update().
+		Where(apikey.IDEQ(key.ID), apikey.DeletedAtIsNil()).
+		SetName(key.Name).
+		SetStatus(key.Status).
+		SetQuota(key.Quota).
+		SetQuotaUsed(key.QuotaUsed).
+		SetRateLimit5h(key.RateLimit5h).
+		SetRateLimit1d(key.RateLimit1d).
+		SetRateLimit7d(key.RateLimit7d).
+		SetUsage5h(key.Usage5h).
+		SetUsage1d(key.Usage1d).
+		SetUsage7d(key.Usage7d).
+		SetUpdatedAt(now)
+	if key.GroupID != nil {
+		builder.SetGroupID(*key.GroupID)
+	} else {
+		builder.ClearGroupID()
+	}
+
+	// Expiration time
+	if key.ExpiresAt != nil {
+		builder.SetExpiresAt(*key.ExpiresAt)
+	} else {
+		builder.ClearExpiresAt()
+	}
+
+	// Rate limit window start times
+	if key.Window5hStart != nil {
+		builder.SetWindow5hStart(*key.Window5hStart)
+	} else {
+		builder.ClearWindow5hStart()
+	}
+	if key.Window1dStart != nil {
+		builder.SetWindow1dStart(*key.Window1dStart)
+	} else {
+		builder.ClearWindow1dStart()
+	}
+	if key.Window7dStart != nil {
+		builder.SetWindow7dStart(*key.Window7dStart)
+	} else {
+		builder.ClearWindow7dStart()
+	}
+
+	// IP 限制字段
+	if len(key.IPWhitelist) > 0 {
+		builder.SetIPWhitelist(key.IPWhitelist)
+	} else {
+		builder.ClearIPWhitelist()
+	}
+	if len(key.IPBlacklist) > 0 {
+		builder.SetIPBlacklist(key.IPBlacklist)
+	} else {
+		builder.ClearIPBlacklist()
+	}
+
+	affected, err := builder.Save(ctx)
+	if err != nil {
+		return err
+	}
+	if affected == 0 {
+		// 更新影响行数为 0，说明记录不存在或已被软删除。
+		return service.ErrAPIKeyNotFound
+	}
+
+	// 使用同一时间戳回填，避免并发删除导致二次查询失败。
+	key.UpdatedAt = now
+	return nil
+}
+
+func (r *apiKeyRepository) Delete(ctx context.Context, id int64) error {
+	// 显式软删除：避免依赖 Hook 行为，确保 deleted_at 一定被设置。
+	affected, err := r.client.APIKey.Update().
+		Where(apikey.IDEQ(id), apikey.DeletedAtIsNil()).
+		SetDeletedAt(time.Now()).
+		Save(ctx)
+	if err != nil {
+		if dbent.IsNotFound(err) {
+			return service.ErrAPIKeyNotFound
+		}
+		return err
+	}
+	if affected == 0 {
+		exists, err := r.client.APIKey.Query().
+			Where(apikey.IDEQ(id)).
+			Exist(mixins.SkipSoftDelete(ctx))
+		if err != nil {
+			return err
+		}
+		if exists {
+			return nil
+		}
+		return service.ErrAPIKeyNotFound
+	}
+	return nil
+}
+
+func (r *apiKeyRepository) ListByUserID(ctx context.Context, userID int64, params pagination.PaginationParams, filters service.APIKeyListFilters) ([]service.APIKey, *pagination.PaginationResult, error) {
+	q := r.activeQuery().Where(apikey.UserIDEQ(userID))
+
+	// Apply filters
+	if filters.Search != "" {
+		q = q.Where(apikey.Or(
+			apikey.NameContainsFold(filters.Search),
+			apikey.KeyContainsFold(filters.Search),
+		))
+	}
+	if filters.Status != "" {
+		q = q.Where(apikey.StatusEQ(filters.Status))
+	}
+	if filters.GroupID != nil {
+		if *filters.GroupID == 0 {
+			q = q.Where(apikey.GroupIDIsNil())
+		} else {
+			q = q.Where(apikey.GroupIDEQ(*filters.GroupID))
+		}
+	}
+
+	total, err := q.Count(ctx)
+	if err != nil {
+		return nil, nil, err
+	}
+
+	keys, err := q.
+		WithGroup().
+		Offset(params.Offset()).
+		Limit(params.Limit()).
+		Order(dbent.Desc(apikey.FieldID)).
+		All(ctx)
+	if err != nil {
+		return nil, nil, err
+	}
+
+	outKeys := make([]service.APIKey, 0, len(keys))
+	for i := range keys {
+		outKeys = append(outKeys, *apiKeyEntityToService(keys[i]))
+	}
+
+	return outKeys, paginationResultFromTotal(int64(total), params), nil
+}
+
+func (r *apiKeyRepository) VerifyOwnership(ctx context.Context, userID int64, apiKeyIDs []int64) ([]int64, error) {
+	if len(apiKeyIDs) == 0 {
+		return []int64{}, nil
+	}
+
+	ids, err := r.client.APIKey.Query().
+		Where(apikey.UserIDEQ(userID), apikey.IDIn(apiKeyIDs...), apikey.DeletedAtIsNil()).
+		IDs(ctx)
+	if err != nil {
+		return nil, err
+	}
+	return ids, nil
+}
+
+func (r *apiKeyRepository) CountByUserID(ctx context.Context, userID int64) (int64, error) {
+	count, err := r.activeQuery().Where(apikey.UserIDEQ(userID)).Count(ctx)
+	return int64(count), err
+}
+
+func (r *apiKeyRepository) ExistsByKey(ctx context.Context, key string) (bool, error) {
+	count, err := r.activeQuery().Where(apikey.KeyEQ(key)).Count(ctx)
+	return count > 0, err
+}
+
+func (r *apiKeyRepository) ListByGroupID(ctx context.Context, groupID int64, params pagination.PaginationParams) ([]service.APIKey, *pagination.PaginationResult, error) {
+	q := r.activeQuery().Where(apikey.GroupIDEQ(groupID))
+
+	total, err := q.Count(ctx)
+	if err != nil {
+		return nil, nil, err
+	}
+
+	keys, err := q.
+		WithUser().
+		Offset(params.Offset()).
+		Limit(params.Limit()).
+		Order(dbent.Desc(apikey.FieldID)).
+		All(ctx)
+	if err != nil {
+		return nil, nil, err
+	}
+
+	outKeys := make([]service.APIKey, 0, len(keys))
+	for i := range keys {
+		outKeys = append(outKeys, *apiKeyEntityToService(keys[i]))
+	}
+
+	return outKeys, paginationResultFromTotal(int64(total), params), nil
+}
+
+// SearchAPIKeys searches API keys by user ID and/or keyword (name)
+func (r *apiKeyRepository) SearchAPIKeys(ctx context.Context, userID int64, keyword string, limit int) ([]service.APIKey, error) {
+	q := r.activeQuery()
+	if userID > 0 {
+		q = q.Where(apikey.UserIDEQ(userID))
+	}
+
+	if keyword != "" {
+		q = q.Where(apikey.NameContainsFold(keyword))
+	}
+
+	keys, err := q.Limit(limit).Order(dbent.Desc(apikey.FieldID)).All(ctx)
+	if err != nil {
+		return nil, err
+	}
+
+	outKeys := make([]service.APIKey, 0, len(keys))
+	for i := range keys {
+		outKeys = append(outKeys, *apiKeyEntityToService(keys[i]))
+	}
+	return outKeys, nil
+}
+
+// ClearGroupIDByGroupID 将指定分组的所有 API Key 的 group_id 设为 nil
+func (r *apiKeyRepository) ClearGroupIDByGroupID(ctx context.Context, groupID int64) (int64, error) {
+	n, err := r.client.APIKey.Update().
+		Where(apikey.GroupIDEQ(groupID), apikey.DeletedAtIsNil()).
+		ClearGroupID().
+		Save(ctx)
+	return int64(n), err
+}
+
+// CountByGroupID 获取分组的 API Key 数量
+func (r *apiKeyRepository) CountByGroupID(ctx context.Context, groupID int64) (int64, error) {
+	count, err := r.activeQuery().Where(apikey.GroupIDEQ(groupID)).Count(ctx)
+	return int64(count), err
+}
+
+func (r *apiKeyRepository) ListKeysByUserID(ctx context.Context, userID int64) ([]string, error) {
+	keys, err := r.activeQuery().
+		Where(apikey.UserIDEQ(userID)).
+		Select(apikey.FieldKey).
+		Strings(ctx)
+	if err != nil {
+		return nil, err
+	}
+	return keys, nil
+}
+
+func (r *apiKeyRepository) ListKeysByGroupID(ctx context.Context, groupID int64) ([]string, error) {
+	keys, err := r.activeQuery().
+		Where(apikey.GroupIDEQ(groupID)).
+		Select(apikey.FieldKey).
+		Strings(ctx)
+	if err != nil {
+		return nil, err
+	}
+	return keys, nil
+}
+
+// IncrementQuotaUsed 使用 Ent 原子递增 quota_used 字段并返回新值
+func (r *apiKeyRepository) IncrementQuotaUsed(ctx context.Context, id int64, amount float64) (float64, error) {
+	updated, err := r.client.APIKey.UpdateOneID(id).
+		Where(apikey.DeletedAtIsNil()).
+		AddQuotaUsed(amount).
+		Save(ctx)
+	if err != nil {
+		if dbent.IsNotFound(err) {
+			return 0, service.ErrAPIKeyNotFound
+		}
+		return 0, err
+	}
+	return updated.QuotaUsed, nil
+}
+
+// IncrementQuotaUsedAndGetState atomically increments quota_used, conditionally marks the key
+// as quota_exhausted, and returns the latest quota state in one round trip.
+func (r *apiKeyRepository) IncrementQuotaUsedAndGetState(ctx context.Context, id int64, amount float64) (*service.APIKeyQuotaUsageState, error) {
+	query := `
+		UPDATE api_keys
+		SET
+			quota_used = quota_used + $1,
+			status = CASE
+				WHEN quota > 0 AND quota_used + $1 >= quota THEN $2
+				ELSE status
+			END,
+			updated_at = NOW()
+		WHERE id = $3 AND deleted_at IS NULL
+		RETURNING quota_used, quota, key, status
+	`
+
+	state := &service.APIKeyQuotaUsageState{}
+	if err := scanSingleRow(ctx, r.sql, query, []any{amount, service.StatusAPIKeyQuotaExhausted, id}, &state.QuotaUsed, &state.Quota, &state.Key, &state.Status); err != nil {
+		if err == sql.ErrNoRows {
+			return nil, service.ErrAPIKeyNotFound
+		}
+		return nil, err
+	}
+	return state, nil
+}
+
+func (r *apiKeyRepository) UpdateLastUsed(ctx context.Context, id int64, usedAt time.Time) error {
+	affected, err := r.client.APIKey.Update().
+		Where(apikey.IDEQ(id), apikey.DeletedAtIsNil()).
+		SetLastUsedAt(usedAt).
+		SetUpdatedAt(usedAt).
+		Save(ctx)
+	if err != nil {
+		return err
+	}
+	if affected == 0 {
+		return service.ErrAPIKeyNotFound
+	}
+	return nil
+}
+
+// IncrementRateLimitUsage atomically increments all rate limit usage counters and initializes
+// window start times via COALESCE if not already set.
+func (r *apiKeyRepository) IncrementRateLimitUsage(ctx context.Context, id int64, cost float64) error {
+	_, err := r.sql.ExecContext(ctx, `
+		UPDATE api_keys SET
+			usage_5h = CASE WHEN window_5h_start IS NOT NULL AND window_5h_start + INTERVAL '5 hours' <= NOW() THEN $1 ELSE usage_5h + $1 END,
+			usage_1d = CASE WHEN window_1d_start IS NOT NULL AND window_1d_start + INTERVAL '24 hours' <= NOW() THEN $1 ELSE usage_1d + $1 END,
+			usage_7d = CASE WHEN window_7d_start IS NOT NULL AND window_7d_start + INTERVAL '7 days' <= NOW() THEN $1 ELSE usage_7d + $1 END,
+			window_5h_start = CASE WHEN window_5h_start IS NULL OR window_5h_start + INTERVAL '5 hours' <= NOW() THEN NOW() ELSE window_5h_start END,
+			window_1d_start = CASE WHEN window_1d_start IS NULL OR window_1d_start + INTERVAL '24 hours' <= NOW() THEN date_trunc('day', NOW()) ELSE window_1d_start END,
+			window_7d_start = CASE WHEN window_7d_start IS NULL OR window_7d_start + INTERVAL '7 days' <= NOW() THEN date_trunc('day', NOW()) ELSE window_7d_start END,
+			updated_at = NOW()
+		WHERE id = $2 AND deleted_at IS NULL`,
+		cost, id)
+	return err
+}
+
+// ResetRateLimitWindows resets expired rate limit windows atomically.
+func (r *apiKeyRepository) ResetRateLimitWindows(ctx context.Context, id int64) error {
+	_, err := r.sql.ExecContext(ctx, `
+		UPDATE api_keys SET
+			usage_5h = CASE WHEN window_5h_start IS NOT NULL AND window_5h_start + INTERVAL '5 hours' <= NOW() THEN 0 ELSE usage_5h END,
+			window_5h_start = CASE WHEN window_5h_start IS NOT NULL AND window_5h_start + INTERVAL '5 hours' <= NOW() THEN NOW() ELSE window_5h_start END,
+			usage_1d = CASE WHEN window_1d_start IS NOT NULL AND window_1d_start + INTERVAL '24 hours' <= NOW() THEN 0 ELSE usage_1d END,
+			window_1d_start = CASE WHEN window_1d_start IS NOT NULL AND window_1d_start + INTERVAL '24 hours' <= NOW() THEN date_trunc('day', NOW()) ELSE window_1d_start END,
+			usage_7d = CASE WHEN window_7d_start IS NOT NULL AND window_7d_start + INTERVAL '7 days' <= NOW() THEN 0 ELSE usage_7d END,
+			window_7d_start = CASE WHEN window_7d_start IS NOT NULL AND window_7d_start + INTERVAL '7 days' <= NOW() THEN date_trunc('day', NOW()) ELSE window_7d_start END,
+			updated_at = NOW()
+		WHERE id = $1 AND deleted_at IS NULL`,
+		id)
+	return err
+}
+
+// GetRateLimitData returns the current rate limit usage and window start times for an API key.
+func (r *apiKeyRepository) GetRateLimitData(ctx context.Context, id int64) (result *service.APIKeyRateLimitData, err error) {
+	rows, err := r.sql.QueryContext(ctx, `
+		SELECT usage_5h, usage_1d, usage_7d, window_5h_start, window_1d_start, window_7d_start
+		FROM api_keys
+		WHERE id = $1 AND deleted_at IS NULL`,
+		id)
+	if err != nil {
+		return nil, err
+	}
+	defer func() {
+		if closeErr := rows.Close(); closeErr != nil && err == nil {
+			err = closeErr
+		}
+	}()
+	if !rows.Next() {
+		return nil, service.ErrAPIKeyNotFound
+	}
+	data := &service.APIKeyRateLimitData{}
+	if err := rows.Scan(&data.Usage5h, &data.Usage1d, &data.Usage7d, &data.Window5hStart, &data.Window1dStart, &data.Window7dStart); err != nil {
+		return nil, err
+	}
+	return data, rows.Err()
+}
+
+func apiKeyEntityToService(m *dbent.APIKey) *service.APIKey {
+	if m == nil {
+		return nil
+	}
+	out := &service.APIKey{
+		ID:            m.ID,
+		UserID:        m.UserID,
+		Key:           m.Key,
+		Name:          m.Name,
+		Status:        m.Status,
+		IPWhitelist:   m.IPWhitelist,
+		IPBlacklist:   m.IPBlacklist,
+		LastUsedAt:    m.LastUsedAt,
+		CreatedAt:     m.CreatedAt,
+		UpdatedAt:     m.UpdatedAt,
+		GroupID:       m.GroupID,
+		Quota:         m.Quota,
+		QuotaUsed:     m.QuotaUsed,
+		ExpiresAt:     m.ExpiresAt,
+		RateLimit5h:   m.RateLimit5h,
+		RateLimit1d:   m.RateLimit1d,
+		RateLimit7d:   m.RateLimit7d,
+		Usage5h:       m.Usage5h,
+		Usage1d:       m.Usage1d,
+		Usage7d:       m.Usage7d,
+		Window5hStart: m.Window5hStart,
+		Window1dStart: m.Window1dStart,
+		Window7dStart: m.Window7dStart,
+	}
+	if m.Edges.User != nil {
+		out.User = userEntityToService(m.Edges.User)
+	}
+	if m.Edges.Group != nil {
+		out.Group = groupEntityToService(m.Edges.Group)
+	}
+	return out
+}
+
+func userEntityToService(u *dbent.User) *service.User {
+	if u == nil {
+		return nil
+	}
+	return &service.User{
+		ID:                    u.ID,
+		Email:                 u.Email,
+		Username:              u.Username,
+		Notes:                 u.Notes,
+		PasswordHash:          u.PasswordHash,
+		Role:                  u.Role,
+		Balance:               u.Balance,
+		Concurrency:           u.Concurrency,
+		Status:                u.Status,
+		SoraStorageQuotaBytes: u.SoraStorageQuotaBytes,
+		SoraStorageUsedBytes:  u.SoraStorageUsedBytes,
+		TotpSecretEncrypted:   u.TotpSecretEncrypted,
+		TotpEnabled:           u.TotpEnabled,
+		TotpEnabledAt:         u.TotpEnabledAt,
+		CreatedAt:             u.CreatedAt,
+		UpdatedAt:             u.UpdatedAt,
+	}
+}
+
+func groupEntityToService(g *dbent.Group) *service.Group {
+	if g == nil {
+		return nil
+	}
+	return &service.Group{
+		ID:                              g.ID,
+		Name:                            g.Name,
+		Description:                     derefString(g.Description),
+		Platform:                        g.Platform,
+		RateMultiplier:                  g.RateMultiplier,
+		IsExclusive:                     g.IsExclusive,
+		Status:                          g.Status,
+		Hydrated:                        true,
+		SubscriptionType:                g.SubscriptionType,
+		DailyLimitUSD:                   g.DailyLimitUsd,
+		WeeklyLimitUSD:                  g.WeeklyLimitUsd,
+		MonthlyLimitUSD:                 g.MonthlyLimitUsd,
+		ImagePrice1K:                    g.ImagePrice1k,
+		ImagePrice2K:                    g.ImagePrice2k,
+		ImagePrice4K:                    g.ImagePrice4k,
+		SoraImagePrice360:               g.SoraImagePrice360,
+		SoraImagePrice540:               g.SoraImagePrice540,
+		SoraVideoPricePerRequest:        g.SoraVideoPricePerRequest,
+		SoraVideoPricePerRequestHD:      g.SoraVideoPricePerRequestHd,
+		SoraStorageQuotaBytes:           g.SoraStorageQuotaBytes,
+		DefaultValidityDays:             g.DefaultValidityDays,
+		ClaudeCodeOnly:                  g.ClaudeCodeOnly,
+		FallbackGroupID:                 g.FallbackGroupID,
+		FallbackGroupIDOnInvalidRequest: g.FallbackGroupIDOnInvalidRequest,
+		ModelRouting:                    g.ModelRouting,
+		ModelRoutingEnabled:             g.ModelRoutingEnabled,
+		MCPXMLInject:                    g.McpXMLInject,
+		SupportedModelScopes:            g.SupportedModelScopes,
+		SortOrder:                       g.SortOrder,
+		AllowMessagesDispatch:           g.AllowMessagesDispatch,
+		DefaultMappedModel:              g.DefaultMappedModel,
+		CreatedAt:                       g.CreatedAt,
+		UpdatedAt:                       g.UpdatedAt,
+	}
+}
+
+func derefString(s *string) string {
+	if s == nil {
+		return ""
+	}
+	return *s
+}

llm-gateway-competitors/sub2api-tar/backend/internal/repository/api_key_repo_integration_test.go

@@ -0,0 +1,493 @@
+//go:build integration
+
+package repository
+
+import (
+	"context"
+	"sync"
+	"testing"
+	"time"
+
+	dbent "github.com/Wei-Shaw/sub2api/ent"
+	"github.com/Wei-Shaw/sub2api/internal/pkg/pagination"
+	"github.com/Wei-Shaw/sub2api/internal/service"
+	"github.com/stretchr/testify/require"
+	"github.com/stretchr/testify/suite"
+)
+
+type APIKeyRepoSuite struct {
+	suite.Suite
+	ctx    context.Context
+	client *dbent.Client
+	repo   *apiKeyRepository
+}
+
+func (s *APIKeyRepoSuite) SetupTest() {
+	s.ctx = context.Background()
+	tx := testEntTx(s.T())
+	s.client = tx.Client()
+	s.repo = newAPIKeyRepositoryWithSQL(s.client, tx)
+}
+
+func TestAPIKeyRepoSuite(t *testing.T) {
+	suite.Run(t, new(APIKeyRepoSuite))
+}
+
+// --- Create / GetByID / GetByKey ---
+
+func (s *APIKeyRepoSuite) TestCreate() {
+	user := s.mustCreateUser("create@test.com")
+
+	key := &service.APIKey{
+		UserID: user.ID,
+		Key:    "sk-create-test",
+		Name:   "Test Key",
+		Status: service.StatusActive,
+	}
+
+	err := s.repo.Create(s.ctx, key)
+	s.Require().NoError(err, "Create")
+	s.Require().NotZero(key.ID, "expected ID to be set")
+
+	got, err := s.repo.GetByID(s.ctx, key.ID)
+	s.Require().NoError(err, "GetByID")
+	s.Require().Equal("sk-create-test", got.Key)
+}
+
+func (s *APIKeyRepoSuite) TestGetByID_NotFound() {
+	_, err := s.repo.GetByID(s.ctx, 999999)
+	s.Require().Error(err, "expected error for non-existent ID")
+}
+
+func (s *APIKeyRepoSuite) TestGetByKey() {
+	user := s.mustCreateUser("getbykey@test.com")
+	group := s.mustCreateGroup("g-key")
+
+	key := &service.APIKey{
+		UserID:  user.ID,
+		Key:     "sk-getbykey",
+		Name:    "My Key",
+		GroupID: &group.ID,
+		Status:  service.StatusActive,
+	}
+	s.Require().NoError(s.repo.Create(s.ctx, key))
+
+	got, err := s.repo.GetByKey(s.ctx, key.Key)
+	s.Require().NoError(err, "GetByKey")
+	s.Require().Equal(key.ID, got.ID)
+	s.Require().NotNil(got.User, "expected User preload")
+	s.Require().Equal(user.ID, got.User.ID)
+	s.Require().NotNil(got.Group, "expected Group preload")
+	s.Require().Equal(group.ID, got.Group.ID)
+}
+
+func (s *APIKeyRepoSuite) TestGetByKey_NotFound() {
+	_, err := s.repo.GetByKey(s.ctx, "non-existent-key")
+	s.Require().Error(err, "expected error for non-existent key")
+}
+
+// --- Update ---
+
+func (s *APIKeyRepoSuite) TestUpdate() {
+	user := s.mustCreateUser("update@test.com")
+	key := &service.APIKey{
+		UserID: user.ID,
+		Key:    "sk-update",
+		Name:   "Original",
+		Status: service.StatusActive,
+	}
+	s.Require().NoError(s.repo.Create(s.ctx, key))
+
+	key.Name = "Renamed"
+	key.Status = service.StatusDisabled
+	err := s.repo.Update(s.ctx, key)
+	s.Require().NoError(err, "Update")
+
+	got, err := s.repo.GetByID(s.ctx, key.ID)
+	s.Require().NoError(err, "GetByID after update")
+	s.Require().Equal("sk-update", got.Key, "Update should not change key")
+	s.Require().Equal(user.ID, got.UserID, "Update should not change user_id")
+	s.Require().Equal("Renamed", got.Name)
+	s.Require().Equal(service.StatusDisabled, got.Status)
+}
+
+func (s *APIKeyRepoSuite) TestUpdate_ClearGroupID() {
+	user := s.mustCreateUser("cleargroup@test.com")
+	group := s.mustCreateGroup("g-clear")
+	key := &service.APIKey{
+		UserID:  user.ID,
+		Key:     "sk-clear-group",
+		Name:    "Group Key",
+		GroupID: &group.ID,
+		Status:  service.StatusActive,
+	}
+	s.Require().NoError(s.repo.Create(s.ctx, key))
+
+	key.GroupID = nil
+	err := s.repo.Update(s.ctx, key)
+	s.Require().NoError(err, "Update")
+
+	got, err := s.repo.GetByID(s.ctx, key.ID)
+	s.Require().NoError(err)
+	s.Require().Nil(got.GroupID, "expected GroupID to be cleared")
+}
+
+// --- Delete ---
+
+func (s *APIKeyRepoSuite) TestDelete() {
+	user := s.mustCreateUser("delete@test.com")
+	key := &service.APIKey{
+		UserID: user.ID,
+		Key:    "sk-delete",
+		Name:   "Delete Me",
+		Status: service.StatusActive,
+	}
+	s.Require().NoError(s.repo.Create(s.ctx, key))
+
+	err := s.repo.Delete(s.ctx, key.ID)
+	s.Require().NoError(err, "Delete")
+
+	_, err = s.repo.GetByID(s.ctx, key.ID)
+	s.Require().Error(err, "expected error after delete")
+}
+
+// --- ListByUserID / CountByUserID ---
+
+func (s *APIKeyRepoSuite) TestListByUserID() {
+	user := s.mustCreateUser("listbyuser@test.com")
+	s.mustCreateApiKey(user.ID, "sk-list-1", "Key 1", nil)
+	s.mustCreateApiKey(user.ID, "sk-list-2", "Key 2", nil)
+
+	keys, page, err := s.repo.ListByUserID(s.ctx, user.ID, pagination.PaginationParams{Page: 1, PageSize: 10}, service.APIKeyListFilters{})
+	s.Require().NoError(err, "ListByUserID")
+	s.Require().Len(keys, 2)
+	s.Require().Equal(int64(2), page.Total)
+}
+
+func (s *APIKeyRepoSuite) TestListByUserID_Pagination() {
+	user := s.mustCreateUser("paging@test.com")
+	for i := 0; i < 5; i++ {
+		s.mustCreateApiKey(user.ID, "sk-page-"+string(rune('a'+i)), "Key", nil)
+	}
+
+	keys, page, err := s.repo.ListByUserID(s.ctx, user.ID, pagination.PaginationParams{Page: 1, PageSize: 2}, service.APIKeyListFilters{})
+	s.Require().NoError(err)
+	s.Require().Len(keys, 2)
+	s.Require().Equal(int64(5), page.Total)
+	s.Require().Equal(3, page.Pages)
+}
+
+func (s *APIKeyRepoSuite) TestCountByUserID() {
+	user := s.mustCreateUser("count@test.com")
+	s.mustCreateApiKey(user.ID, "sk-count-1", "K1", nil)
+	s.mustCreateApiKey(user.ID, "sk-count-2", "K2", nil)
+
+	count, err := s.repo.CountByUserID(s.ctx, user.ID)
+	s.Require().NoError(err, "CountByUserID")
+	s.Require().Equal(int64(2), count)
+}
+
+// --- ListByGroupID / CountByGroupID ---
+
+func (s *APIKeyRepoSuite) TestListByGroupID() {
+	user := s.mustCreateUser("listbygroup@test.com")
+	group := s.mustCreateGroup("g-list")
+
+	s.mustCreateApiKey(user.ID, "sk-grp-1", "K1", &group.ID)
+	s.mustCreateApiKey(user.ID, "sk-grp-2", "K2", &group.ID)
+	s.mustCreateApiKey(user.ID, "sk-grp-3", "K3", nil) // no group
+
+	keys, page, err := s.repo.ListByGroupID(s.ctx, group.ID, pagination.PaginationParams{Page: 1, PageSize: 10})
+	s.Require().NoError(err, "ListByGroupID")
+	s.Require().Len(keys, 2)
+	s.Require().Equal(int64(2), page.Total)
+	// User preloaded
+	s.Require().NotNil(keys[0].User)
+}
+
+func (s *APIKeyRepoSuite) TestCountByGroupID() {
+	user := s.mustCreateUser("countgroup@test.com")
+	group := s.mustCreateGroup("g-count")
+	s.mustCreateApiKey(user.ID, "sk-gc-1", "K1", &group.ID)
+
+	count, err := s.repo.CountByGroupID(s.ctx, group.ID)
+	s.Require().NoError(err, "CountByGroupID")
+	s.Require().Equal(int64(1), count)
+}
+
+// --- ExistsByKey ---
+
+func (s *APIKeyRepoSuite) TestExistsByKey() {
+	user := s.mustCreateUser("exists@test.com")
+	s.mustCreateApiKey(user.ID, "sk-exists", "K", nil)
+
+	exists, err := s.repo.ExistsByKey(s.ctx, "sk-exists")
+	s.Require().NoError(err, "ExistsByKey")
+	s.Require().True(exists)
+
+	notExists, err := s.repo.ExistsByKey(s.ctx, "sk-not-exists")
+	s.Require().NoError(err)
+	s.Require().False(notExists)
+}
+
+// --- SearchAPIKeys ---
+
+func (s *APIKeyRepoSuite) TestSearchAPIKeys() {
+	user := s.mustCreateUser("search@test.com")
+	s.mustCreateApiKey(user.ID, "sk-search-1", "Production Key", nil)
+	s.mustCreateApiKey(user.ID, "sk-search-2", "Development Key", nil)
+
+	found, err := s.repo.SearchAPIKeys(s.ctx, user.ID, "prod", 10)
+	s.Require().NoError(err, "SearchAPIKeys")
+	s.Require().Len(found, 1)
+	s.Require().Contains(found[0].Name, "Production")
+}
+
+func (s *APIKeyRepoSuite) TestSearchAPIKeys_NoKeyword() {
+	user := s.mustCreateUser("searchnokw@test.com")
+	s.mustCreateApiKey(user.ID, "sk-nk-1", "K1", nil)
+	s.mustCreateApiKey(user.ID, "sk-nk-2", "K2", nil)
+
+	found, err := s.repo.SearchAPIKeys(s.ctx, user.ID, "", 10)
+	s.Require().NoError(err)
+	s.Require().Len(found, 2)
+}
+
+func (s *APIKeyRepoSuite) TestSearchAPIKeys_NoUserID() {
+	user := s.mustCreateUser("searchnouid@test.com")
+	s.mustCreateApiKey(user.ID, "sk-nu-1", "TestKey", nil)
+
+	found, err := s.repo.SearchAPIKeys(s.ctx, 0, "testkey", 10)
+	s.Require().NoError(err)
+	s.Require().Len(found, 1)
+}
+
+// --- ClearGroupIDByGroupID ---
+
+func (s *APIKeyRepoSuite) TestClearGroupIDByGroupID() {
+	user := s.mustCreateUser("cleargrp@test.com")
+	group := s.mustCreateGroup("g-clear-bulk")
+
+	k1 := s.mustCreateApiKey(user.ID, "sk-clr-1", "K1", &group.ID)
+	k2 := s.mustCreateApiKey(user.ID, "sk-clr-2", "K2", &group.ID)
+	s.mustCreateApiKey(user.ID, "sk-clr-3", "K3", nil) // no group
+
+	affected, err := s.repo.ClearGroupIDByGroupID(s.ctx, group.ID)
+	s.Require().NoError(err, "ClearGroupIDByGroupID")
+	s.Require().Equal(int64(2), affected)
+
+	got1, _ := s.repo.GetByID(s.ctx, k1.ID)
+	got2, _ := s.repo.GetByID(s.ctx, k2.ID)
+	s.Require().Nil(got1.GroupID)
+	s.Require().Nil(got2.GroupID)
+
+	count, _ := s.repo.CountByGroupID(s.ctx, group.ID)
+	s.Require().Zero(count)
+}
+
+// --- Combined CRUD/Search/ClearGroupID (original test preserved as integration) ---
+
+func (s *APIKeyRepoSuite) TestCRUD_Search_ClearGroupID() {
+	user := s.mustCreateUser("k@example.com")
+	group := s.mustCreateGroup("g-k")
+	key := s.mustCreateApiKey(user.ID, "sk-test-1", "My Key", &group.ID)
+	key.GroupID = &group.ID
+
+	got, err := s.repo.GetByKey(s.ctx, key.Key)
+	s.Require().NoError(err, "GetByKey")
+	s.Require().Equal(key.ID, got.ID)
+	s.Require().NotNil(got.User)
+	s.Require().Equal(user.ID, got.User.ID)
+	s.Require().NotNil(got.Group)
+	s.Require().Equal(group.ID, got.Group.ID)
+
+	key.Name = "Renamed"
+	key.Status = service.StatusDisabled
+	key.GroupID = nil
+	s.Require().NoError(s.repo.Update(s.ctx, key), "Update")
+
+	got2, err := s.repo.GetByID(s.ctx, key.ID)
+	s.Require().NoError(err, "GetByID")
+	s.Require().Equal("sk-test-1", got2.Key, "Update should not change key")
+	s.Require().Equal(user.ID, got2.UserID, "Update should not change user_id")
+	s.Require().Equal("Renamed", got2.Name)
+	s.Require().Equal(service.StatusDisabled, got2.Status)
+	s.Require().Nil(got2.GroupID)
+
+	keys, page, err := s.repo.ListByUserID(s.ctx, user.ID, pagination.PaginationParams{Page: 1, PageSize: 10}, service.APIKeyListFilters{})
+	s.Require().NoError(err, "ListByUserID")
+	s.Require().Equal(int64(1), page.Total)
+	s.Require().Len(keys, 1)
+
+	exists, err := s.repo.ExistsByKey(s.ctx, "sk-test-1")
+	s.Require().NoError(err, "ExistsByKey")
+	s.Require().True(exists, "expected key to exist")
+
+	found, err := s.repo.SearchAPIKeys(s.ctx, user.ID, "renam", 10)
+	s.Require().NoError(err, "SearchAPIKeys")
+	s.Require().Len(found, 1)
+	s.Require().Equal(key.ID, found[0].ID)
+
+	// ClearGroupIDByGroupID
+	k2 := s.mustCreateApiKey(user.ID, "sk-test-2", "Group Key", &group.ID)
+	k2.GroupID = &group.ID
+
+	countBefore, err := s.repo.CountByGroupID(s.ctx, group.ID)
+	s.Require().NoError(err, "CountByGroupID")
+	s.Require().Equal(int64(1), countBefore, "expected 1 key in group before clear")
+
+	affected, err := s.repo.ClearGroupIDByGroupID(s.ctx, group.ID)
+	s.Require().NoError(err, "ClearGroupIDByGroupID")
+	s.Require().Equal(int64(1), affected, "expected 1 affected row")
+
+	got3, err := s.repo.GetByID(s.ctx, k2.ID)
+	s.Require().NoError(err, "GetByID")
+	s.Require().Nil(got3.GroupID, "expected GroupID cleared")
+
+	countAfter, err := s.repo.CountByGroupID(s.ctx, group.ID)
+	s.Require().NoError(err, "CountByGroupID after clear")
+	s.Require().Equal(int64(0), countAfter, "expected 0 keys in group after clear")
+}
+
+func (s *APIKeyRepoSuite) mustCreateUser(email string) *service.User {
+	s.T().Helper()
+
+	u, err := s.client.User.Create().
+		SetEmail(email).
+		SetPasswordHash("test-password-hash").
+		SetStatus(service.StatusActive).
+		SetRole(service.RoleUser).
+		Save(s.ctx)
+	s.Require().NoError(err, "create user")
+	return userEntityToService(u)
+}
+
+func (s *APIKeyRepoSuite) mustCreateGroup(name string) *service.Group {
+	s.T().Helper()
+
+	g, err := s.client.Group.Create().
+		SetName(name).
+		SetStatus(service.StatusActive).
+		Save(s.ctx)
+	s.Require().NoError(err, "create group")
+	return groupEntityToService(g)
+}
+
+func (s *APIKeyRepoSuite) mustCreateApiKey(userID int64, key, name string, groupID *int64) *service.APIKey {
+	s.T().Helper()
+
+	k := &service.APIKey{
+		UserID:  userID,
+		Key:     key,
+		Name:    name,
+		GroupID: groupID,
+		Status:  service.StatusActive,
+	}
+	s.Require().NoError(s.repo.Create(s.ctx, k), "create api key")
+	return k
+}
+
+// --- IncrementQuotaUsed ---
+
+func (s *APIKeyRepoSuite) TestIncrementQuotaUsed_Basic() {
+	user := s.mustCreateUser("incr-basic@test.com")
+	key := s.mustCreateApiKey(user.ID, "sk-incr-basic", "Incr", nil)
+
+	newQuota, err := s.repo.IncrementQuotaUsed(s.ctx, key.ID, 1.5)
+	s.Require().NoError(err, "IncrementQuotaUsed")
+	s.Require().Equal(1.5, newQuota, "第一次递增后应为 1.5")
+
+	newQuota, err = s.repo.IncrementQuotaUsed(s.ctx, key.ID, 2.5)
+	s.Require().NoError(err, "IncrementQuotaUsed second")
+	s.Require().Equal(4.0, newQuota, "第二次递增后应为 4.0")
+}
+
+func (s *APIKeyRepoSuite) TestIncrementQuotaUsed_NotFound() {
+	_, err := s.repo.IncrementQuotaUsed(s.ctx, 999999, 1.0)
+	s.Require().ErrorIs(err, service.ErrAPIKeyNotFound, "不存在的 key 应返回 ErrAPIKeyNotFound")
+}
+
+func (s *APIKeyRepoSuite) TestIncrementQuotaUsed_DeletedKey() {
+	user := s.mustCreateUser("incr-deleted@test.com")
+	key := s.mustCreateApiKey(user.ID, "sk-incr-del", "Deleted", nil)
+
+	s.Require().NoError(s.repo.Delete(s.ctx, key.ID), "Delete")
+
+	_, err := s.repo.IncrementQuotaUsed(s.ctx, key.ID, 1.0)
+	s.Require().ErrorIs(err, service.ErrAPIKeyNotFound, "已删除的 key 应返回 ErrAPIKeyNotFound")
+}
+
+func (s *APIKeyRepoSuite) TestIncrementQuotaUsedAndGetState() {
+	user := s.mustCreateUser("quota-state@test.com")
+	key := s.mustCreateApiKey(user.ID, "sk-quota-state", "QuotaState", nil)
+	key.Quota = 3
+	key.QuotaUsed = 1
+	s.Require().NoError(s.repo.Update(s.ctx, key), "Update quota")
+
+	state, err := s.repo.IncrementQuotaUsedAndGetState(s.ctx, key.ID, 2.5)
+	s.Require().NoError(err, "IncrementQuotaUsedAndGetState")
+	s.Require().NotNil(state)
+	s.Require().Equal(3.5, state.QuotaUsed)
+	s.Require().Equal(3.0, state.Quota)
+	s.Require().Equal(service.StatusAPIKeyQuotaExhausted, state.Status)
+	s.Require().Equal(key.Key, state.Key)
+
+	got, err := s.repo.GetByID(s.ctx, key.ID)
+	s.Require().NoError(err, "GetByID")
+	s.Require().Equal(3.5, got.QuotaUsed)
+	s.Require().Equal(service.StatusAPIKeyQuotaExhausted, got.Status)
+}
+
+// TestIncrementQuotaUsed_Concurrent 使用真实数据库验证并发原子性。
+// 注意：此测试使用 testEntClient（非事务隔离），数据会真正写入数据库。
+func TestIncrementQuotaUsed_Concurrent(t *testing.T) {
+	client := testEntClient(t)
+	repo := NewAPIKeyRepository(client, integrationDB).(*apiKeyRepository)
+	ctx := context.Background()
+
+	// 创建测试用户和 API Key
+	u, err := client.User.Create().
+		SetEmail("concurrent-incr-" + time.Now().Format(time.RFC3339Nano) + "@test.com").
+		SetPasswordHash("hash").
+		SetStatus(service.StatusActive).
+		SetRole(service.RoleUser).
+		Save(ctx)
+	require.NoError(t, err, "create user")
+
+	k := &service.APIKey{
+		UserID: u.ID,
+		Key:    "sk-concurrent-" + time.Now().Format(time.RFC3339Nano),
+		Name:   "Concurrent",
+		Status: service.StatusActive,
+	}
+	require.NoError(t, repo.Create(ctx, k), "create api key")
+	t.Cleanup(func() {
+		_ = client.APIKey.DeleteOneID(k.ID).Exec(ctx)
+		_ = client.User.DeleteOneID(u.ID).Exec(ctx)
+	})
+
+	// 10 个 goroutine 各递增 1.0，总计应为 10.0
+	const goroutines = 10
+	const increment = 1.0
+	var wg sync.WaitGroup
+	errs := make([]error, goroutines)
+
+	for i := 0; i < goroutines; i++ {
+		wg.Add(1)
+		go func(idx int) {
+			defer wg.Done()
+			_, errs[idx] = repo.IncrementQuotaUsed(ctx, k.ID, increment)
+		}(i)
+	}
+	wg.Wait()
+
+	for i, e := range errs {
+		require.NoError(t, e, "goroutine %d failed", i)
+	}
+
+	// 验证最终结果
+	got, err := repo.GetByID(ctx, k.ID)
+	require.NoError(t, err, "GetByID")
+	require.Equal(t, float64(goroutines)*increment, got.QuotaUsed,
+		"并发递增后总和应为 %v，实际为 %v", float64(goroutines)*increment, got.QuotaUsed)
+}

llm-gateway-competitors/sub2api-tar/backend/internal/repository/api_key_repo_last_used_unit_test.go

@@ -0,0 +1,156 @@
+package repository
+
+import (
+	"context"
+	"database/sql"
+	"testing"
+	"time"
+
+	dbent "github.com/Wei-Shaw/sub2api/ent"
+	"github.com/Wei-Shaw/sub2api/ent/enttest"
+	"github.com/Wei-Shaw/sub2api/internal/service"
+	"github.com/stretchr/testify/require"
+
+	"entgo.io/ent/dialect"
+	entsql "entgo.io/ent/dialect/sql"
+	_ "modernc.org/sqlite"
+)
+
+func newAPIKeyRepoSQLite(t *testing.T) (*apiKeyRepository, *dbent.Client) {
+	t.Helper()
+
+	db, err := sql.Open("sqlite", "file:api_key_repo_last_used?mode=memory&cache=shared")
+	require.NoError(t, err)
+	t.Cleanup(func() { _ = db.Close() })
+
+	_, err = db.Exec("PRAGMA foreign_keys = ON")
+	require.NoError(t, err)
+
+	drv := entsql.OpenDB(dialect.SQLite, db)
+	client := enttest.NewClient(t, enttest.WithOptions(dbent.Driver(drv)))
+	t.Cleanup(func() { _ = client.Close() })
+
+	return &apiKeyRepository{client: client}, client
+}
+
+func mustCreateAPIKeyRepoUser(t *testing.T, ctx context.Context, client *dbent.Client, email string) *service.User {
+	t.Helper()
+	u, err := client.User.Create().
+		SetEmail(email).
+		SetPasswordHash("test-password-hash").
+		SetRole(service.RoleUser).
+		SetStatus(service.StatusActive).
+		Save(ctx)
+	require.NoError(t, err)
+	return userEntityToService(u)
+}
+
+func TestAPIKeyRepository_CreateWithLastUsedAt(t *testing.T) {
+	repo, client := newAPIKeyRepoSQLite(t)
+	ctx := context.Background()
+	user := mustCreateAPIKeyRepoUser(t, ctx, client, "create-last-used@test.com")
+
+	lastUsed := time.Now().UTC().Add(-time.Hour).Truncate(time.Second)
+	key := &service.APIKey{
+		UserID:     user.ID,
+		Key:        "sk-create-last-used",
+		Name:       "CreateWithLastUsed",
+		Status:     service.StatusActive,
+		LastUsedAt: &lastUsed,
+	}
+
+	require.NoError(t, repo.Create(ctx, key))
+	require.NotNil(t, key.LastUsedAt)
+	require.WithinDuration(t, lastUsed, *key.LastUsedAt, time.Second)
+
+	got, err := repo.GetByID(ctx, key.ID)
+	require.NoError(t, err)
+	require.NotNil(t, got.LastUsedAt)
+	require.WithinDuration(t, lastUsed, *got.LastUsedAt, time.Second)
+}
+
+func TestAPIKeyRepository_UpdateLastUsed(t *testing.T) {
+	repo, client := newAPIKeyRepoSQLite(t)
+	ctx := context.Background()
+	user := mustCreateAPIKeyRepoUser(t, ctx, client, "update-last-used@test.com")
+
+	key := &service.APIKey{
+		UserID: user.ID,
+		Key:    "sk-update-last-used",
+		Name:   "UpdateLastUsed",
+		Status: service.StatusActive,
+	}
+	require.NoError(t, repo.Create(ctx, key))
+
+	before, err := repo.GetByID(ctx, key.ID)
+	require.NoError(t, err)
+	require.Nil(t, before.LastUsedAt)
+
+	target := time.Now().UTC().Add(2 * time.Minute).Truncate(time.Second)
+	require.NoError(t, repo.UpdateLastUsed(ctx, key.ID, target))
+
+	after, err := repo.GetByID(ctx, key.ID)
+	require.NoError(t, err)
+	require.NotNil(t, after.LastUsedAt)
+	require.WithinDuration(t, target, *after.LastUsedAt, time.Second)
+	require.WithinDuration(t, target, after.UpdatedAt, time.Second)
+}
+
+func TestAPIKeyRepository_UpdateLastUsedDeletedKey(t *testing.T) {
+	repo, client := newAPIKeyRepoSQLite(t)
+	ctx := context.Background()
+	user := mustCreateAPIKeyRepoUser(t, ctx, client, "deleted-last-used@test.com")
+
+	key := &service.APIKey{
+		UserID: user.ID,
+		Key:    "sk-update-last-used-deleted",
+		Name:   "UpdateLastUsedDeleted",
+		Status: service.StatusActive,
+	}
+	require.NoError(t, repo.Create(ctx, key))
+	require.NoError(t, repo.Delete(ctx, key.ID))
+
+	err := repo.UpdateLastUsed(ctx, key.ID, time.Now().UTC())
+	require.ErrorIs(t, err, service.ErrAPIKeyNotFound)
+}
+
+func TestAPIKeyRepository_UpdateLastUsedDBError(t *testing.T) {
+	repo, client := newAPIKeyRepoSQLite(t)
+	ctx := context.Background()
+	user := mustCreateAPIKeyRepoUser(t, ctx, client, "db-error-last-used@test.com")
+
+	key := &service.APIKey{
+		UserID: user.ID,
+		Key:    "sk-update-last-used-db-error",
+		Name:   "UpdateLastUsedDBError",
+		Status: service.StatusActive,
+	}
+	require.NoError(t, repo.Create(ctx, key))
+
+	require.NoError(t, client.Close())
+	err := repo.UpdateLastUsed(ctx, key.ID, time.Now().UTC())
+	require.Error(t, err)
+}
+
+func TestAPIKeyRepository_CreateDuplicateKey(t *testing.T) {
+	repo, client := newAPIKeyRepoSQLite(t)
+	ctx := context.Background()
+	user := mustCreateAPIKeyRepoUser(t, ctx, client, "duplicate-key@test.com")
+
+	first := &service.APIKey{
+		UserID: user.ID,
+		Key:    "sk-duplicate",
+		Name:   "first",
+		Status: service.StatusActive,
+	}
+	second := &service.APIKey{
+		UserID: user.ID,
+		Key:    "sk-duplicate",
+		Name:   "second",
+		Status: service.StatusActive,
+	}
+
+	require.NoError(t, repo.Create(ctx, first))
+	err := repo.Create(ctx, second)
+	require.ErrorIs(t, err, service.ErrAPIKeyExists)
+}

llm-gateway-competitors/sub2api-tar/backend/internal/repository/backup_pg_dumper.go

@@ -0,0 +1,98 @@
+package repository
+
+import (
+	"context"
+	"fmt"
+	"io"
+	"os/exec"
+
+	"github.com/Wei-Shaw/sub2api/internal/config"
+	"github.com/Wei-Shaw/sub2api/internal/service"
+)
+
+// PgDumper implements service.DBDumper using pg_dump/psql
+type PgDumper struct {
+	cfg *config.DatabaseConfig
+}
+
+// NewPgDumper creates a new PgDumper
+func NewPgDumper(cfg *config.Config) service.DBDumper {
+	return &PgDumper{cfg: &cfg.Database}
+}
+
+// Dump executes pg_dump and returns a streaming reader of the output
+func (d *PgDumper) Dump(ctx context.Context) (io.ReadCloser, error) {
+	args := []string{
+		"-h", d.cfg.Host,
+		"-p", fmt.Sprintf("%d", d.cfg.Port),
+		"-U", d.cfg.User,
+		"-d", d.cfg.DBName,
+		"--no-owner",
+		"--no-acl",
+		"--clean",
+		"--if-exists",
+	}
+
+	cmd := exec.CommandContext(ctx, "pg_dump", args...)
+	if d.cfg.Password != "" {
+		cmd.Env = append(cmd.Environ(), "PGPASSWORD="+d.cfg.Password)
+	}
+	if d.cfg.SSLMode != "" {
+		cmd.Env = append(cmd.Environ(), "PGSSLMODE="+d.cfg.SSLMode)
+	}
+
+	stdout, err := cmd.StdoutPipe()
+	if err != nil {
+		return nil, fmt.Errorf("create stdout pipe: %w", err)
+	}
+
+	if err := cmd.Start(); err != nil {
+		return nil, fmt.Errorf("start pg_dump: %w", err)
+	}
+
+	// 返回一个 ReadCloser：读 stdout，关闭时等待进程退出
+	return &cmdReadCloser{ReadCloser: stdout, cmd: cmd}, nil
+}
+
+// Restore executes psql to restore from a streaming reader
+func (d *PgDumper) Restore(ctx context.Context, data io.Reader) error {
+	args := []string{
+		"-h", d.cfg.Host,
+		"-p", fmt.Sprintf("%d", d.cfg.Port),
+		"-U", d.cfg.User,
+		"-d", d.cfg.DBName,
+		"--single-transaction",
+	}
+
+	cmd := exec.CommandContext(ctx, "psql", args...)
+	if d.cfg.Password != "" {
+		cmd.Env = append(cmd.Environ(), "PGPASSWORD="+d.cfg.Password)
+	}
+	if d.cfg.SSLMode != "" {
+		cmd.Env = append(cmd.Environ(), "PGSSLMODE="+d.cfg.SSLMode)
+	}
+
+	cmd.Stdin = data
+
+	output, err := cmd.CombinedOutput()
+	if err != nil {
+		return fmt.Errorf("%v: %s", err, string(output))
+	}
+	return nil
+}
+
+// cmdReadCloser wraps a command stdout pipe and waits for the process on Close
+type cmdReadCloser struct {
+	io.ReadCloser
+	cmd *exec.Cmd
+}
+
+func (c *cmdReadCloser) Close() error {
+	// Close the pipe first
+	_ = c.ReadCloser.Close()
+	// Wait for the process to exit
+	if err := c.cmd.Wait(); err != nil {
+		return fmt.Errorf("pg_dump exited with error: %w", err)
+	}
+	return nil
+}

llm-gateway-competitors/sub2api-tar/backend/internal/repository/backup_s3_store.go

@@ -0,0 +1,116 @@
+package repository
+
+import (
+	"bytes"
+	"context"
+	"fmt"
+	"io"
+	"time"
+
+	"github.com/aws/aws-sdk-go-v2/aws"
+	v4 "github.com/aws/aws-sdk-go-v2/aws/signer/v4"
+	awsconfig "github.com/aws/aws-sdk-go-v2/config"
+	"github.com/aws/aws-sdk-go-v2/credentials"
+	"github.com/aws/aws-sdk-go-v2/service/s3"
+
+	"github.com/Wei-Shaw/sub2api/internal/service"
+)
+
+// S3BackupStore implements service.BackupObjectStore using AWS S3 compatible storage
+type S3BackupStore struct {
+	client *s3.Client
+	bucket string
+}
+
+// NewS3BackupStoreFactory returns a BackupObjectStoreFactory that creates S3-backed stores
+func NewS3BackupStoreFactory() service.BackupObjectStoreFactory {
+	return func(ctx context.Context, cfg *service.BackupS3Config) (service.BackupObjectStore, error) {
+		region := cfg.Region
+		if region == "" {
+			region = "auto" // Cloudflare R2 默认 region
+		}
+
+		awsCfg, err := awsconfig.LoadDefaultConfig(ctx,
+			awsconfig.WithRegion(region),
+			awsconfig.WithCredentialsProvider(
+				credentials.NewStaticCredentialsProvider(cfg.AccessKeyID, cfg.SecretAccessKey, ""),
+			),
+		)
+		if err != nil {
+			return nil, fmt.Errorf("load aws config: %w", err)
+		}
+
+		client := s3.NewFromConfig(awsCfg, func(o *s3.Options) {
+			if cfg.Endpoint != "" {
+				o.BaseEndpoint = &cfg.Endpoint
+			}
+			if cfg.ForcePathStyle {
+				o.UsePathStyle = true
+			}
+			o.APIOptions = append(o.APIOptions, v4.SwapComputePayloadSHA256ForUnsignedPayloadMiddleware)
+			o.RequestChecksumCalculation = aws.RequestChecksumCalculationWhenRequired
+		})
+
+		return &S3BackupStore{client: client, bucket: cfg.Bucket}, nil
+	}
+}
+
+func (s *S3BackupStore) Upload(ctx context.Context, key string, body io.Reader, contentType string) (int64, error) {
+	// 读取全部内容以获取大小（S3 PutObject 需要知道内容长度）
+	data, err := io.ReadAll(body)
+	if err != nil {
+		return 0, fmt.Errorf("read body: %w", err)
+	}
+
+	_, err = s.client.PutObject(ctx, &s3.PutObjectInput{
+		Bucket:      &s.bucket,
+		Key:         &key,
+		Body:        bytes.NewReader(data),
+		ContentType: &contentType,
+	})
+	if err != nil {
+		return 0, fmt.Errorf("S3 PutObject: %w", err)
+	}
+	return int64(len(data)), nil
+}
+
+func (s *S3BackupStore) Download(ctx context.Context, key string) (io.ReadCloser, error) {
+	result, err := s.client.GetObject(ctx, &s3.GetObjectInput{
+		Bucket: &s.bucket,
+		Key:    &key,
+	})
+	if err != nil {
+		return nil, fmt.Errorf("S3 GetObject: %w", err)
+	}
+	return result.Body, nil
+}
+
+func (s *S3BackupStore) Delete(ctx context.Context, key string) error {
+	_, err := s.client.DeleteObject(ctx, &s3.DeleteObjectInput{
+		Bucket: &s.bucket,
+		Key:    &key,
+	})
+	return err
+}
+
+func (s *S3BackupStore) PresignURL(ctx context.Context, key string, expiry time.Duration) (string, error) {
+	presignClient := s3.NewPresignClient(s.client)
+	result, err := presignClient.PresignGetObject(ctx, &s3.GetObjectInput{
+		Bucket: &s.bucket,
+		Key:    &key,
+	}, s3.WithPresignExpires(expiry))
+	if err != nil {
+		return "", fmt.Errorf("presign url: %w", err)
+	}
+	return result.URL, nil
+}
+
+func (s *S3BackupStore) HeadBucket(ctx context.Context) error {
+	_, err := s.client.HeadBucket(ctx, &s3.HeadBucketInput{
+		Bucket: &s.bucket,
+	})
+	if err != nil {
+		return fmt.Errorf("S3 HeadBucket failed: %w", err)
+	}
+	return nil
+}

llm-gateway-competitors/sub2api-tar/backend/internal/repository/billing_cache.go

@@ -0,0 +1,330 @@
+package repository
+
+import (
+	"context"
+	"errors"
+	"fmt"
+	"log"
+	"math/rand/v2"
+	"strconv"
+	"time"
+
+	"github.com/Wei-Shaw/sub2api/internal/service"
+	"github.com/redis/go-redis/v9"
+)
+
+const (
+	billingBalanceKeyPrefix   = "billing:balance:"
+	billingSubKeyPrefix       = "billing:sub:"
+	billingRateLimitKeyPrefix = "apikey:rate:"
+	billingCacheTTL           = 5 * time.Minute
+	billingCacheJitter        = 30 * time.Second
+	rateLimitCacheTTL         = 7 * 24 * time.Hour // 7 days matches the longest window
+
+	// Rate limit window durations — must match service.RateLimitWindow* constants.
+	rateLimitWindow5h = 5 * time.Hour
+	rateLimitWindow1d = 24 * time.Hour
+	rateLimitWindow7d = 7 * 24 * time.Hour
+)
+
+// jitteredTTL 返回带随机抖动的 TTL，防止缓存雪崩
+func jitteredTTL() time.Duration {
+	// 只做“减法抖动”，确保实际 TTL 不会超过 billingCacheTTL（避免上界预期被打破）。
+	if billingCacheJitter <= 0 {
+		return billingCacheTTL
+	}
+	jitter := time.Duration(rand.IntN(int(billingCacheJitter)))
+	return billingCacheTTL - jitter
+}
+
+// billingBalanceKey generates the Redis key for user balance cache.
+func billingBalanceKey(userID int64) string {
+	return fmt.Sprintf("%s%d", billingBalanceKeyPrefix, userID)
+}
+
+// billingSubKey generates the Redis key for subscription cache.
+func billingSubKey(userID, groupID int64) string {
+	return fmt.Sprintf("%s%d:%d", billingSubKeyPrefix, userID, groupID)
+}
+
+const (
+	subFieldStatus       = "status"
+	subFieldExpiresAt    = "expires_at"
+	subFieldDailyUsage   = "daily_usage"
+	subFieldWeeklyUsage  = "weekly_usage"
+	subFieldMonthlyUsage = "monthly_usage"
+	subFieldVersion      = "version"
+)
+
+// billingRateLimitKey generates the Redis key for API key rate limit cache.
+func billingRateLimitKey(keyID int64) string {
+	return fmt.Sprintf("%s%d", billingRateLimitKeyPrefix, keyID)
+}
+
+const (
+	rateLimitFieldUsage5h  = "usage_5h"
+	rateLimitFieldUsage1d  = "usage_1d"
+	rateLimitFieldUsage7d  = "usage_7d"
+	rateLimitFieldWindow5h = "window_5h"
+	rateLimitFieldWindow1d = "window_1d"
+	rateLimitFieldWindow7d = "window_7d"
+)
+
+var (
+	deductBalanceScript = redis.NewScript(`
+		local current = redis.call('GET', KEYS[1])
+		if current == false then
+			return 0
+		end
+		local newVal = tonumber(current) - tonumber(ARGV[1])
+		redis.call('SET', KEYS[1], newVal)
+		redis.call('EXPIRE', KEYS[1], ARGV[2])
+		return 1
+	`)
+
+	updateSubUsageScript = redis.NewScript(`
+		local exists = redis.call('EXISTS', KEYS[1])
+		if exists == 0 then
+			return 0
+		end
+		local cost = tonumber(ARGV[1])
+		redis.call('HINCRBYFLOAT', KEYS[1], 'daily_usage', cost)
+		redis.call('HINCRBYFLOAT', KEYS[1], 'weekly_usage', cost)
+		redis.call('HINCRBYFLOAT', KEYS[1], 'monthly_usage', cost)
+		redis.call('EXPIRE', KEYS[1], ARGV[2])
+		return 1
+	`)
+
+	// updateRateLimitUsageScript atomically increments all three rate limit usage counters
+	// with window expiration checking. If a window has expired, its usage is reset to cost
+	// (instead of accumulated) and the window timestamp is updated, matching the DB-side
+	// IncrementRateLimitUsage semantics.
+	//
+	// ARGV: [1]=cost, [2]=ttl_seconds, [3]=now_unix, [4]=window_5h_seconds, [5]=window_1d_seconds, [6]=window_7d_seconds
+	updateRateLimitUsageScript = redis.NewScript(`
+		local exists = redis.call('EXISTS', KEYS[1])
+		if exists == 0 then
+			return 0
+		end
+		local cost = tonumber(ARGV[1])
+		local now = tonumber(ARGV[3])
+		local win5h = tonumber(ARGV[4])
+		local win1d = tonumber(ARGV[5])
+		local win7d = tonumber(ARGV[6])
+
+		-- Helper: check if window is expired and update usage + window accordingly
+		-- Returns nothing, modifies the hash in-place.
+		local function update_window(usage_field, window_field, window_duration)
+			local w = tonumber(redis.call('HGET', KEYS[1], window_field) or 0)
+			if w == 0 or (now - w) >= window_duration then
+				-- Window expired or never started: reset usage to cost, start new window
+				redis.call('HSET', KEYS[1], usage_field, tostring(cost))
+				redis.call('HSET', KEYS[1], window_field, tostring(now))
+			else
+				-- Window still valid: accumulate
+				redis.call('HINCRBYFLOAT', KEYS[1], usage_field, cost)
+			end
+		end
+
+		update_window('usage_5h', 'window_5h', win5h)
+		update_window('usage_1d', 'window_1d', win1d)
+		update_window('usage_7d', 'window_7d', win7d)
+		redis.call('EXPIRE', KEYS[1], ARGV[2])
+		return 1
+	`)
+)
+
+type billingCache struct {
+	rdb *redis.Client
+}
+
+func NewBillingCache(rdb *redis.Client) service.BillingCache {
+	return &billingCache{rdb: rdb}
+}
+
+func (c *billingCache) GetUserBalance(ctx context.Context, userID int64) (float64, error) {
+	key := billingBalanceKey(userID)
+	val, err := c.rdb.Get(ctx, key).Result()
+	if err != nil {
+		return 0, err
+	}
+	return strconv.ParseFloat(val, 64)
+}
+
+func (c *billingCache) SetUserBalance(ctx context.Context, userID int64, balance float64) error {
+	key := billingBalanceKey(userID)
+	return c.rdb.Set(ctx, key, balance, jitteredTTL()).Err()
+}
+
+func (c *billingCache) DeductUserBalance(ctx context.Context, userID int64, amount float64) error {
+	key := billingBalanceKey(userID)
+	_, err := deductBalanceScript.Run(ctx, c.rdb, []string{key}, amount, int(jitteredTTL().Seconds())).Result()
+	if err != nil && !errors.Is(err, redis.Nil) {
+		log.Printf("Warning: deduct balance cache failed for user %d: %v", userID, err)
+		return err
+	}
+	return nil
+}
+
+func (c *billingCache) InvalidateUserBalance(ctx context.Context, userID int64) error {
+	key := billingBalanceKey(userID)
+	return c.rdb.Del(ctx, key).Err()
+}
+
+func (c *billingCache) GetSubscriptionCache(ctx context.Context, userID, groupID int64) (*service.SubscriptionCacheData, error) {
+	key := billingSubKey(userID, groupID)
+	result, err := c.rdb.HGetAll(ctx, key).Result()
+	if err != nil {
+		return nil, err
+	}
+	if len(result) == 0 {
+		return nil, redis.Nil
+	}
+	return c.parseSubscriptionCache(result)
+}
+
+func (c *billingCache) parseSubscriptionCache(data map[string]string) (*service.SubscriptionCacheData, error) {
+	result := &service.SubscriptionCacheData{}
+
+	result.Status = data[subFieldStatus]
+	if result.Status == "" {
+		return nil, errors.New("invalid cache: missing status")
+	}
+
+	if expiresStr, ok := data[subFieldExpiresAt]; ok {
+		expiresAt, err := strconv.ParseInt(expiresStr, 10, 64)
+		if err == nil {
+			result.ExpiresAt = time.Unix(expiresAt, 0)
+		}
+	}
+
+	if dailyStr, ok := data[subFieldDailyUsage]; ok {
+		result.DailyUsage, _ = strconv.ParseFloat(dailyStr, 64)
+	}
+
+	if weeklyStr, ok := data[subFieldWeeklyUsage]; ok {
+		result.WeeklyUsage, _ = strconv.ParseFloat(weeklyStr, 64)
+	}
+
+	if monthlyStr, ok := data[subFieldMonthlyUsage]; ok {
+		result.MonthlyUsage, _ = strconv.ParseFloat(monthlyStr, 64)
+	}
+
+	if versionStr, ok := data[subFieldVersion]; ok {
+		result.Version, _ = strconv.ParseInt(versionStr, 10, 64)
+	}
+
+	return result, nil
+}
+
+func (c *billingCache) SetSubscriptionCache(ctx context.Context, userID, groupID int64, data *service.SubscriptionCacheData) error {
+	if data == nil {
+		return nil
+	}
+
+	key := billingSubKey(userID, groupID)
+
+	fields := map[string]any{
+		subFieldStatus:       data.Status,
+		subFieldExpiresAt:    data.ExpiresAt.Unix(),
+		subFieldDailyUsage:   data.DailyUsage,
+		subFieldWeeklyUsage:  data.WeeklyUsage,
+		subFieldMonthlyUsage: data.MonthlyUsage,
+		subFieldVersion:      data.Version,
+	}
+
+	pipe := c.rdb.Pipeline()
+	pipe.HSet(ctx, key, fields)
+	pipe.Expire(ctx, key, jitteredTTL())
+	_, err := pipe.Exec(ctx)
+	return err
+}
+
+func (c *billingCache) UpdateSubscriptionUsage(ctx context.Context, userID, groupID int64, cost float64) error {
+	key := billingSubKey(userID, groupID)
+	_, err := updateSubUsageScript.Run(ctx, c.rdb, []string{key}, cost, int(jitteredTTL().Seconds())).Result()
+	if err != nil && !errors.Is(err, redis.Nil) {
+		log.Printf("Warning: update subscription usage cache failed for user %d group %d: %v", userID, groupID, err)
+		return err
+	}
+	return nil
+}
+
+func (c *billingCache) InvalidateSubscriptionCache(ctx context.Context, userID, groupID int64) error {
+	key := billingSubKey(userID, groupID)
+	return c.rdb.Del(ctx, key).Err()
+}
+
+func (c *billingCache) GetAPIKeyRateLimit(ctx context.Context, keyID int64) (*service.APIKeyRateLimitCacheData, error) {
+	key := billingRateLimitKey(keyID)
+	result, err := c.rdb.HGetAll(ctx, key).Result()
+	if err != nil {
+		return nil, err
+	}
+	if len(result) == 0 {
+		return nil, redis.Nil
+	}
+	data := &service.APIKeyRateLimitCacheData{}
+	if v, ok := result[rateLimitFieldUsage5h]; ok {
+		data.Usage5h, _ = strconv.ParseFloat(v, 64)
+	}
+	if v, ok := result[rateLimitFieldUsage1d]; ok {
+		data.Usage1d, _ = strconv.ParseFloat(v, 64)
+	}
+	if v, ok := result[rateLimitFieldUsage7d]; ok {
+		data.Usage7d, _ = strconv.ParseFloat(v, 64)
+	}
+	if v, ok := result[rateLimitFieldWindow5h]; ok {
+		data.Window5h, _ = strconv.ParseInt(v, 10, 64)
+	}
+	if v, ok := result[rateLimitFieldWindow1d]; ok {
+		data.Window1d, _ = strconv.ParseInt(v, 10, 64)
+	}
+	if v, ok := result[rateLimitFieldWindow7d]; ok {
+		data.Window7d, _ = strconv.ParseInt(v, 10, 64)
+	}
+	return data, nil
+}
+
+func (c *billingCache) SetAPIKeyRateLimit(ctx context.Context, keyID int64, data *service.APIKeyRateLimitCacheData) error {
+	if data == nil {
+		return nil
+	}
+	key := billingRateLimitKey(keyID)
+	fields := map[string]any{
+		rateLimitFieldUsage5h:  data.Usage5h,
+		rateLimitFieldUsage1d:  data.Usage1d,
+		rateLimitFieldUsage7d:  data.Usage7d,
+		rateLimitFieldWindow5h: data.Window5h,
+		rateLimitFieldWindow1d: data.Window1d,
+		rateLimitFieldWindow7d: data.Window7d,
+	}
+	pipe := c.rdb.Pipeline()
+	pipe.HSet(ctx, key, fields)
+	pipe.Expire(ctx, key, rateLimitCacheTTL)
+	_, err := pipe.Exec(ctx)
+	return err
+}
+
+func (c *billingCache) UpdateAPIKeyRateLimitUsage(ctx context.Context, keyID int64, cost float64) error {
+	key := billingRateLimitKey(keyID)
+	now := time.Now().Unix()
+	_, err := updateRateLimitUsageScript.Run(ctx, c.rdb, []string{key},
+		cost,
+		int(rateLimitCacheTTL.Seconds()),
+		now,
+		int(rateLimitWindow5h.Seconds()),
+		int(rateLimitWindow1d.Seconds()),
+		int(rateLimitWindow7d.Seconds()),
+	).Result()
+	if err != nil && !errors.Is(err, redis.Nil) {
+		log.Printf("Warning: update rate limit usage cache failed for api key %d: %v", keyID, err)
+		return err
+	}
+	return nil
+}
+
+func (c *billingCache) InvalidateAPIKeyRateLimit(ctx context.Context, keyID int64) error {
+	key := billingRateLimitKey(keyID)
+	return c.rdb.Del(ctx, key).Err()
+}

llm-gateway-competitors/sub2api-tar/backend/internal/repository/billing_cache_integration_test.go

@@ -0,0 +1,367 @@
+//go:build integration
+
+package repository
+
+import (
+	"context"
+	"fmt"
+	"testing"
+	"time"
+
+	"github.com/Wei-Shaw/sub2api/internal/service"
+	"github.com/redis/go-redis/v9"
+	"github.com/stretchr/testify/require"
+	"github.com/stretchr/testify/suite"
+)
+
+type BillingCacheSuite struct {
+	IntegrationRedisSuite
+}
+
+func (s *BillingCacheSuite) TestUserBalance() {
+	tests := []struct {
+		name string
+		fn   func(ctx context.Context, rdb *redis.Client, cache service.BillingCache)
+	}{
+		{
+			name: "missing_key_returns_redis_nil",
+			fn: func(ctx context.Context, rdb *redis.Client, cache service.BillingCache) {
+				_, err := cache.GetUserBalance(ctx, 1)
+				require.ErrorIs(s.T(), err, redis.Nil, "expected redis.Nil for missing balance key")
+			},
+		},
+		{
+			name: "deduct_on_nonexistent_is_noop",
+			fn: func(ctx context.Context, rdb *redis.Client, cache service.BillingCache) {
+				userID := int64(1)
+				balanceKey := fmt.Sprintf("%s%d", billingBalanceKeyPrefix, userID)
+
+				require.NoError(s.T(), cache.DeductUserBalance(ctx, userID, 1), "DeductUserBalance should not error")
+
+				_, err := rdb.Get(ctx, balanceKey).Result()
+				require.ErrorIs(s.T(), err, redis.Nil, "expected missing key after deduct on non-existent")
+			},
+		},
+		{
+			name: "set_and_get_with_ttl",
+			fn: func(ctx context.Context, rdb *redis.Client, cache service.BillingCache) {
+				userID := int64(2)
+				balanceKey := fmt.Sprintf("%s%d", billingBalanceKeyPrefix, userID)
+
+				require.NoError(s.T(), cache.SetUserBalance(ctx, userID, 10.5), "SetUserBalance")
+
+				got, err := cache.GetUserBalance(ctx, userID)
+				require.NoError(s.T(), err, "GetUserBalance")
+				require.Equal(s.T(), 10.5, got, "balance mismatch")
+
+				ttl, err := rdb.TTL(ctx, balanceKey).Result()
+				require.NoError(s.T(), err, "TTL")
+				s.AssertTTLWithin(ttl, 1*time.Second, billingCacheTTL)
+			},
+		},
+		{
+			name: "deduct_reduces_balance",
+			fn: func(ctx context.Context, rdb *redis.Client, cache service.BillingCache) {
+				userID := int64(3)
+
+				require.NoError(s.T(), cache.SetUserBalance(ctx, userID, 10.5), "SetUserBalance")
+				require.NoError(s.T(), cache.DeductUserBalance(ctx, userID, 2.25), "DeductUserBalance")
+
+				got, err := cache.GetUserBalance(ctx, userID)
+				require.NoError(s.T(), err, "GetUserBalance after deduct")
+				require.Equal(s.T(), 8.25, got, "deduct mismatch")
+			},
+		},
+		{
+			name: "invalidate_removes_key",
+			fn: func(ctx context.Context, rdb *redis.Client, cache service.BillingCache) {
+				userID := int64(100)
+				balanceKey := fmt.Sprintf("%s%d", billingBalanceKeyPrefix, userID)
+
+				require.NoError(s.T(), cache.SetUserBalance(ctx, userID, 50.0), "SetUserBalance")
+
+				exists, err := rdb.Exists(ctx, balanceKey).Result()
+				require.NoError(s.T(), err, "Exists")
+				require.Equal(s.T(), int64(1), exists, "expected balance key to exist")
+
+				require.NoError(s.T(), cache.InvalidateUserBalance(ctx, userID), "InvalidateUserBalance")
+
+				exists, err = rdb.Exists(ctx, balanceKey).Result()
+				require.NoError(s.T(), err, "Exists after invalidate")
+				require.Equal(s.T(), int64(0), exists, "expected balance key to be removed after invalidate")
+
+				_, err = cache.GetUserBalance(ctx, userID)
+				require.ErrorIs(s.T(), err, redis.Nil, "expected redis.Nil after invalidate")
+			},
+		},
+		{
+			name: "deduct_refreshes_ttl",
+			fn: func(ctx context.Context, rdb *redis.Client, cache service.BillingCache) {
+				userID := int64(103)
+				balanceKey := fmt.Sprintf("%s%d", billingBalanceKeyPrefix, userID)
+
+				require.NoError(s.T(), cache.SetUserBalance(ctx, userID, 100.0), "SetUserBalance")
+
+				ttl1, err := rdb.TTL(ctx, balanceKey).Result()
+				require.NoError(s.T(), err, "TTL before deduct")
+				s.AssertTTLWithin(ttl1, 1*time.Second, billingCacheTTL)
+
+				require.NoError(s.T(), cache.DeductUserBalance(ctx, userID, 25.0), "DeductUserBalance")
+
+				balance, err := cache.GetUserBalance(ctx, userID)
+				require.NoError(s.T(), err, "GetUserBalance")
+				require.Equal(s.T(), 75.0, balance, "expected balance 75.0")
+
+				ttl2, err := rdb.TTL(ctx, balanceKey).Result()
+				require.NoError(s.T(), err, "TTL after deduct")
+				s.AssertTTLWithin(ttl2, 1*time.Second, billingCacheTTL)
+			},
+		},
+	}
+
+	for _, tt := range tests {
+		s.Run(tt.name, func() {
+			rdb := testRedis(s.T())
+			cache := NewBillingCache(rdb)
+			ctx := context.Background()
+
+			tt.fn(ctx, rdb, cache)
+		})
+	}
+}
+
+func (s *BillingCacheSuite) TestSubscriptionCache() {
+	tests := []struct {
+		name string
+		fn   func(ctx context.Context, rdb *redis.Client, cache service.BillingCache)
+	}{
+		{
+			name: "missing_key_returns_redis_nil",
+			fn: func(ctx context.Context, rdb *redis.Client, cache service.BillingCache) {
+				userID := int64(10)
+				groupID := int64(20)
+
+				_, err := cache.GetSubscriptionCache(ctx, userID, groupID)
+				require.ErrorIs(s.T(), err, redis.Nil, "expected redis.Nil for missing subscription key")
+			},
+		},
+		{
+			name: "update_usage_on_nonexistent_is_noop",
+			fn: func(ctx context.Context, rdb *redis.Client, cache service.BillingCache) {
+				userID := int64(11)
+				groupID := int64(21)
+				subKey := fmt.Sprintf("%s%d:%d", billingSubKeyPrefix, userID, groupID)
+
+				require.NoError(s.T(), cache.UpdateSubscriptionUsage(ctx, userID, groupID, 1.0), "UpdateSubscriptionUsage should not error")
+
+				exists, err := rdb.Exists(ctx, subKey).Result()
+				require.NoError(s.T(), err, "Exists")
+				require.Equal(s.T(), int64(0), exists, "expected missing subscription key after UpdateSubscriptionUsage on non-existent")
+			},
+		},
+		{
+			name: "set_and_get_with_ttl",
+			fn: func(ctx context.Context, rdb *redis.Client, cache service.BillingCache) {
+				userID := int64(12)
+				groupID := int64(22)
+				subKey := fmt.Sprintf("%s%d:%d", billingSubKeyPrefix, userID, groupID)
+
+				data := &service.SubscriptionCacheData{
+					Status:       "active",
+					ExpiresAt:    time.Now().Add(1 * time.Hour),
+					DailyUsage:   1.0,
+					WeeklyUsage:  2.0,
+					MonthlyUsage: 3.0,
+					Version:      7,
+				}
+				require.NoError(s.T(), cache.SetSubscriptionCache(ctx, userID, groupID, data), "SetSubscriptionCache")
+
+				gotSub, err := cache.GetSubscriptionCache(ctx, userID, groupID)
+				require.NoError(s.T(), err, "GetSubscriptionCache")
+				require.Equal(s.T(), "active", gotSub.Status)
+				require.Equal(s.T(), int64(7), gotSub.Version)
+				require.Equal(s.T(), 1.0, gotSub.DailyUsage)
+
+				ttl, err := rdb.TTL(ctx, subKey).Result()
+				require.NoError(s.T(), err, "TTL subKey")
+				s.AssertTTLWithin(ttl, 1*time.Second, billingCacheTTL)
+			},
+		},
+		{
+			name: "update_usage_increments_all_fields",
+			fn: func(ctx context.Context, rdb *redis.Client, cache service.BillingCache) {
+				userID := int64(13)
+				groupID := int64(23)
+
+				data := &service.SubscriptionCacheData{
+					Status:       "active",
+					ExpiresAt:    time.Now().Add(1 * time.Hour),
+					DailyUsage:   1.0,
+					WeeklyUsage:  2.0,
+					MonthlyUsage: 3.0,
+					Version:      1,
+				}
+				require.NoError(s.T(), cache.SetSubscriptionCache(ctx, userID, groupID, data), "SetSubscriptionCache")
+
+				require.NoError(s.T(), cache.UpdateSubscriptionUsage(ctx, userID, groupID, 0.5), "UpdateSubscriptionUsage")
+
+				gotSub, err := cache.GetSubscriptionCache(ctx, userID, groupID)
+				require.NoError(s.T(), err, "GetSubscriptionCache after update")
+				require.Equal(s.T(), 1.5, gotSub.DailyUsage)
+				require.Equal(s.T(), 2.5, gotSub.WeeklyUsage)
+				require.Equal(s.T(), 3.5, gotSub.MonthlyUsage)
+			},
+		},
+		{
+			name: "invalidate_removes_key",
+			fn: func(ctx context.Context, rdb *redis.Client, cache service.BillingCache) {
+				userID := int64(101)
+				groupID := int64(10)
+				subKey := fmt.Sprintf("%s%d:%d", billingSubKeyPrefix, userID, groupID)
+
+				data := &service.SubscriptionCacheData{
+					Status:       "active",
+					ExpiresAt:    time.Now().Add(1 * time.Hour),
+					DailyUsage:   1.0,
+					WeeklyUsage:  2.0,
+					MonthlyUsage: 3.0,
+					Version:      1,
+				}
+				require.NoError(s.T(), cache.SetSubscriptionCache(ctx, userID, groupID, data), "SetSubscriptionCache")
+
+				exists, err := rdb.Exists(ctx, subKey).Result()
+				require.NoError(s.T(), err, "Exists")
+				require.Equal(s.T(), int64(1), exists, "expected subscription key to exist")
+
+				require.NoError(s.T(), cache.InvalidateSubscriptionCache(ctx, userID, groupID), "InvalidateSubscriptionCache")
+
+				exists, err = rdb.Exists(ctx, subKey).Result()
+				require.NoError(s.T(), err, "Exists after invalidate")
+				require.Equal(s.T(), int64(0), exists, "expected subscription key to be removed after invalidate")
+
+				_, err = cache.GetSubscriptionCache(ctx, userID, groupID)
+				require.ErrorIs(s.T(), err, redis.Nil, "expected redis.Nil after invalidate")
+			},
+		},
+		{
+			name: "missing_status_returns_parsing_error",
+			fn: func(ctx context.Context, rdb *redis.Client, cache service.BillingCache) {
+				userID := int64(102)
+				groupID := int64(11)
+				subKey := fmt.Sprintf("%s%d:%d", billingSubKeyPrefix, userID, groupID)
+
+				fields := map[string]any{
+					"expires_at":    time.Now().Add(1 * time.Hour).Unix(),
+					"daily_usage":   1.0,
+					"weekly_usage":  2.0,
+					"monthly_usage": 3.0,
+					"version":       1,
+				}
+				require.NoError(s.T(), rdb.HSet(ctx, subKey, fields).Err(), "HSet")
+
+				_, err := cache.GetSubscriptionCache(ctx, userID, groupID)
+				require.Error(s.T(), err, "expected error for missing status field")
+				require.NotErrorIs(s.T(), err, redis.Nil, "expected parsing error, not redis.Nil")
+				require.Equal(s.T(), "invalid cache: missing status", err.Error())
+			},
+		},
+	}
+
+	for _, tt := range tests {
+		s.Run(tt.name, func() {
+			rdb := testRedis(s.T())
+			cache := NewBillingCache(rdb)
+			ctx := context.Background()
+
+			tt.fn(ctx, rdb, cache)
+		})
+	}
+}
+
+// TestDeductUserBalance_ErrorPropagation 验证 P2-12 修复：
+// Redis 真实错误应传播，key 不存在（redis.Nil）应返回 nil。
+func (s *BillingCacheSuite) TestDeductUserBalance_ErrorPropagation() {
+	tests := []struct {
+		name      string
+		fn        func(ctx context.Context, cache service.BillingCache)
+		expectErr bool
+	}{
+		{
+			name: "key_not_exists_returns_nil",
+			fn: func(ctx context.Context, cache service.BillingCache) {
+				// key 不存在时，Lua 脚本返回 0（redis.Nil），应返回 nil 而非错误
+				err := cache.DeductUserBalance(ctx, 99999, 1.0)
+				require.NoError(s.T(), err, "DeductUserBalance on non-existent key should return nil")
+			},
+		},
+		{
+			name: "existing_key_deducts_successfully",
+			fn: func(ctx context.Context, cache service.BillingCache) {
+				require.NoError(s.T(), cache.SetUserBalance(ctx, 200, 50.0))
+				err := cache.DeductUserBalance(ctx, 200, 10.0)
+				require.NoError(s.T(), err, "DeductUserBalance should succeed")
+
+				bal, err := cache.GetUserBalance(ctx, 200)
+				require.NoError(s.T(), err)
+				require.Equal(s.T(), 40.0, bal, "余额应为 40.0")
+			},
+		},
+		{
+			name: "cancelled_context_propagates_error",
+			fn: func(ctx context.Context, cache service.BillingCache) {
+				require.NoError(s.T(), cache.SetUserBalance(ctx, 201, 50.0))
+
+				cancelCtx, cancel := context.WithCancel(ctx)
+				cancel() // 立即取消
+
+				err := cache.DeductUserBalance(cancelCtx, 201, 10.0)
+				require.Error(s.T(), err, "cancelled context should propagate error")
+			},
+		},
+	}
+
+	for _, tt := range tests {
+		s.Run(tt.name, func() {
+			rdb := testRedis(s.T())
+			cache := NewBillingCache(rdb)
+			ctx := context.Background()
+			tt.fn(ctx, cache)
+		})
+	}
+}
+
+// TestUpdateSubscriptionUsage_ErrorPropagation 验证 P2-12 修复：
+// Redis 真实错误应传播，key 不存在（redis.Nil）应返回 nil。
+func (s *BillingCacheSuite) TestUpdateSubscriptionUsage_ErrorPropagation() {
+	s.Run("key_not_exists_returns_nil", func() {
+		rdb := testRedis(s.T())
+		cache := NewBillingCache(rdb)
+		ctx := context.Background()
+
+		err := cache.UpdateSubscriptionUsage(ctx, 88888, 77777, 1.0)
+		require.NoError(s.T(), err, "UpdateSubscriptionUsage on non-existent key should return nil")
+	})
+
+	s.Run("cancelled_context_propagates_error", func() {
+		rdb := testRedis(s.T())
+		cache := NewBillingCache(rdb)
+		ctx := context.Background()
+
+		data := &service.SubscriptionCacheData{
+			Status:    "active",
+			ExpiresAt: time.Now().Add(1 * time.Hour),
+			Version:   1,
+		}
+		require.NoError(s.T(), cache.SetSubscriptionCache(ctx, 301, 401, data))
+
+		cancelCtx, cancel := context.WithCancel(ctx)
+		cancel()
+
+		err := cache.UpdateSubscriptionUsage(cancelCtx, 301, 401, 1.0)
+		require.Error(s.T(), err, "cancelled context should propagate error")
+	})
+}
+
+func TestBillingCacheSuite(t *testing.T) {
+	suite.Run(t, new(BillingCacheSuite))
+}

llm-gateway-competitors/sub2api-tar/backend/internal/repository/billing_cache_jitter_test.go

@@ -0,0 +1,82 @@
+package repository
+
+import (
+	"testing"
+	"time"
+
+	"github.com/stretchr/testify/assert"
+	"github.com/stretchr/testify/require"
+)
+
+// --- Task 6.1 验证: math/rand/v2 迁移后 jitteredTTL 行为正确 ---
+
+func TestJitteredTTL_WithinExpectedRange(t *testing.T) {
+	// jitteredTTL 使用减法抖动: billingCacheTTL - [0, billingCacheJitter)
+	// 所以结果应在 [billingCacheTTL - billingCacheJitter, billingCacheTTL] 范围内
+	lowerBound := billingCacheTTL - billingCacheJitter // 5min - 30s = 4min30s
+	upperBound := billingCacheTTL                      // 5min
+
+	for i := 0; i < 200; i++ {
+		ttl := jitteredTTL()
+		assert.GreaterOrEqual(t, int64(ttl), int64(lowerBound),
+			"TTL 不应低于 %v，实际得到 %v", lowerBound, ttl)
+		assert.LessOrEqual(t, int64(ttl), int64(upperBound),
+			"TTL 不应超过 %v（上界不变保证），实际得到 %v", upperBound, ttl)
+	}
+}
+
+func TestJitteredTTL_NeverExceedsBase(t *testing.T) {
+	// 关键安全性测试：jitteredTTL 使用减法抖动，确保永远不超过 billingCacheTTL
+	for i := 0; i < 500; i++ {
+		ttl := jitteredTTL()
+		assert.LessOrEqual(t, int64(ttl), int64(billingCacheTTL),
+			"jitteredTTL 不应超过基础 TTL（上界预期不被打破）")
+	}
+}
+
+func TestJitteredTTL_HasVariance(t *testing.T) {
+	// 验证抖动确实产生了不同的值
+	results := make(map[time.Duration]bool)
+	for i := 0; i < 100; i++ {
+		ttl := jitteredTTL()
+		results[ttl] = true
+	}
+
+	require.Greater(t, len(results), 1,
+		"jitteredTTL 应产生不同的值（抖动生效），但 100 次调用结果全部相同")
+}
+
+func TestJitteredTTL_AverageNearCenter(t *testing.T) {
+	// 验证平均值大约在抖动范围中间
+	var sum time.Duration
+	runs := 1000
+	for i := 0; i < runs; i++ {
+		sum += jitteredTTL()
+	}
+
+	avg := sum / time.Duration(runs)
+	expectedCenter := billingCacheTTL - billingCacheJitter/2 // 4min45s
+
+	// 允许 ±5s 的误差
+	tolerance := 5 * time.Second
+	assert.InDelta(t, float64(expectedCenter), float64(avg), float64(tolerance),
+		"平均 TTL 应接近抖动范围中心 %v", expectedCenter)
+}
+
+func TestBillingKeyGeneration(t *testing.T) {
+	t.Run("balance_key", func(t *testing.T) {
+		key := billingBalanceKey(12345)
+		assert.Equal(t, "billing:balance:12345", key)
+	})
+
+	t.Run("sub_key", func(t *testing.T) {
+		key := billingSubKey(100, 200)
+		assert.Equal(t, "billing:sub:100:200", key)
+	})
+}
+
+func BenchmarkJitteredTTL(b *testing.B) {
+	for i := 0; i < b.N; i++ {
+		_ = jitteredTTL()
+	}
+}

llm-gateway-competitors/sub2api-tar/backend/internal/repository/billing_cache_test.go

@@ -0,0 +1,111 @@
+//go:build unit
+
+package repository
+
+import (
+	"math"
+	"testing"
+	"time"
+
+	"github.com/stretchr/testify/require"
+)
+
+func TestBillingBalanceKey(t *testing.T) {
+	tests := []struct {
+		name     string
+		userID   int64
+		expected string
+	}{
+		{
+			name:     "normal_user_id",
+			userID:   123,
+			expected: "billing:balance:123",
+		},
+		{
+			name:     "zero_user_id",
+			userID:   0,
+			expected: "billing:balance:0",
+		},
+		{
+			name:     "negative_user_id",
+			userID:   -1,
+			expected: "billing:balance:-1",
+		},
+		{
+			name:     "max_int64",
+			userID:   math.MaxInt64,
+			expected: "billing:balance:9223372036854775807",
+		},
+	}
+
+	for _, tc := range tests {
+		t.Run(tc.name, func(t *testing.T) {
+			got := billingBalanceKey(tc.userID)
+			require.Equal(t, tc.expected, got)
+		})
+	}
+}
+
+func TestBillingSubKey(t *testing.T) {
+	tests := []struct {
+		name     string
+		userID   int64
+		groupID  int64
+		expected string
+	}{
+		{
+			name:     "normal_ids",
+			userID:   123,
+			groupID:  456,
+			expected: "billing:sub:123:456",
+		},
+		{
+			name:     "zero_ids",
+			userID:   0,
+			groupID:  0,
+			expected: "billing:sub:0:0",
+		},
+		{
+			name:     "negative_ids",
+			userID:   -1,
+			groupID:  -2,
+			expected: "billing:sub:-1:-2",
+		},
+		{
+			name:     "max_int64_ids",
+			userID:   math.MaxInt64,
+			groupID:  math.MaxInt64,
+			expected: "billing:sub:9223372036854775807:9223372036854775807",
+		},
+	}
+
+	for _, tc := range tests {
+		t.Run(tc.name, func(t *testing.T) {
+			got := billingSubKey(tc.userID, tc.groupID)
+			require.Equal(t, tc.expected, got)
+		})
+	}
+}
+
+func TestJitteredTTL(t *testing.T) {
+	const (
+		minTTL = 4*time.Minute + 30*time.Second // 270s = 5min - 30s
+		maxTTL = 5*time.Minute + 30*time.Second // 330s = 5min + 30s
+	)
+
+	for i := 0; i < 200; i++ {
+		ttl := jitteredTTL()
+		require.GreaterOrEqual(t, ttl, minTTL, "jitteredTTL() 返回值低于下限: %v", ttl)
+		require.LessOrEqual(t, ttl, maxTTL, "jitteredTTL() 返回值超过上限: %v", ttl)
+	}
+}
+
+func TestJitteredTTL_HasVariation(t *testing.T) {
+	// 多次调用应该产生不同的值（验证抖动存在）
+	seen := make(map[time.Duration]struct{}, 50)
+	for i := 0; i < 50; i++ {
+		seen[jitteredTTL()] = struct{}{}
+	}
+	// 50 次调用中应该至少有 2 个不同的值
+	require.Greater(t, len(seen), 1, "jitteredTTL() 应产生不同的 TTL 值")
+}

llm-gateway-competitors/sub2api-tar/backend/internal/repository/claude_oauth_service.go

@@ -0,0 +1,285 @@
+package repository
+
+import (
+	"context"
+	"encoding/json"
+	"fmt"
+	"net/http"
+	"net/url"
+	"strings"
+	"time"
+
+	"github.com/Wei-Shaw/sub2api/internal/pkg/logger"
+	"github.com/Wei-Shaw/sub2api/internal/pkg/oauth"
+	"github.com/Wei-Shaw/sub2api/internal/pkg/proxyurl"
+	"github.com/Wei-Shaw/sub2api/internal/service"
+	"github.com/Wei-Shaw/sub2api/internal/util/logredact"
+
+	"github.com/imroc/req/v3"
+)
+
+func NewClaudeOAuthClient() service.ClaudeOAuthClient {
+	return &claudeOAuthService{
+		baseURL:       "https://claude.ai",
+		tokenURL:      oauth.TokenURL,
+		clientFactory: createReqClient,
+	}
+}
+
+type claudeOAuthService struct {
+	baseURL       string
+	tokenURL      string
+	clientFactory func(proxyURL string) (*req.Client, error)
+}
+
+func (s *claudeOAuthService) GetOrganizationUUID(ctx context.Context, sessionKey, proxyURL string) (string, error) {
+	client, err := s.clientFactory(proxyURL)
+	if err != nil {
+		return "", fmt.Errorf("create HTTP client: %w", err)
+	}
+
+	var orgs []struct {
+		UUID      string  `json:"uuid"`
+		Name      string  `json:"name"`
+		RavenType *string `json:"raven_type"` // nil for personal, "team" for team organization
+	}
+
+	targetURL := s.baseURL + "/api/organizations"
+	logger.LegacyPrintf("repository.claude_oauth", "[OAuth] Step 1: Getting organization UUID from %s", targetURL)
+
+	resp, err := client.R().
+		SetContext(ctx).
+		SetCookies(&http.Cookie{
+			Name:  "sessionKey",
+			Value: sessionKey,
+		}).
+		SetSuccessResult(&orgs).
+		Get(targetURL)
+
+	if err != nil {
+		logger.LegacyPrintf("repository.claude_oauth", "[OAuth] Step 1 FAILED - Request error: %v", err)
+		return "", fmt.Errorf("request failed: %w", err)
+	}
+
+	logger.LegacyPrintf("repository.claude_oauth", "[OAuth] Step 1 Response - Status: %d", resp.StatusCode)
+
+	if !resp.IsSuccessState() {
+		return "", fmt.Errorf("failed to get organizations: status %d, body: %s", resp.StatusCode, resp.String())
+	}
+
+	if len(orgs) == 0 {
+		return "", fmt.Errorf("no organizations found")
+	}
+
+	// 如果只有一个组织，直接使用
+	if len(orgs) == 1 {
+		logger.LegacyPrintf("repository.claude_oauth", "[OAuth] Step 1 SUCCESS - Single org found, UUID: %s, Name: %s", orgs[0].UUID, orgs[0].Name)
+		return orgs[0].UUID, nil
+	}
+
+	// 如果有多个组织，优先选择 raven_type 为 "team" 的组织
+	for _, org := range orgs {
+		if org.RavenType != nil && *org.RavenType == "team" {
+			logger.LegacyPrintf("repository.claude_oauth", "[OAuth] Step 1 SUCCESS - Selected team org, UUID: %s, Name: %s, RavenType: %s",
+				org.UUID, org.Name, *org.RavenType)
+			return org.UUID, nil
+		}
+	}
+
+	// 如果没有 team 类型的组织，使用第一个
+	logger.LegacyPrintf("repository.claude_oauth", "[OAuth] Step 1 SUCCESS - No team org found, using first org, UUID: %s, Name: %s", orgs[0].UUID, orgs[0].Name)
+	return orgs[0].UUID, nil
+}
+
+func (s *claudeOAuthService) GetAuthorizationCode(ctx context.Context, sessionKey, orgUUID, scope, codeChallenge, state, proxyURL string) (string, error) {
+	client, err := s.clientFactory(proxyURL)
+	if err != nil {
+		return "", fmt.Errorf("create HTTP client: %w", err)
+	}
+
+	authURL := fmt.Sprintf("%s/v1/oauth/%s/authorize", s.baseURL, orgUUID)
+
+	reqBody := map[string]any{
+		"response_type":         "code",
+		"client_id":             oauth.ClientID,
+		"organization_uuid":     orgUUID,
+		"redirect_uri":          oauth.RedirectURI,
+		"scope":                 scope,
+		"state":                 state,
+		"code_challenge":        codeChallenge,
+		"code_challenge_method": "S256",
+	}
+
+	logger.LegacyPrintf("repository.claude_oauth", "[OAuth] Step 2: Getting authorization code from %s", authURL)
+	reqBodyJSON, _ := json.Marshal(logredact.RedactMap(reqBody))
+	logger.LegacyPrintf("repository.claude_oauth", "[OAuth] Step 2 Request Body: %s", string(reqBodyJSON))
+
+	var result struct {
+		RedirectURI string `json:"redirect_uri"`
+	}
+
+	resp, err := client.R().
+		SetContext(ctx).
+		SetCookies(&http.Cookie{
+			Name:  "sessionKey",
+			Value: sessionKey,
+		}).
+		SetHeader("Accept", "application/json").
+		SetHeader("Accept-Language", "en-US,en;q=0.9").
+		SetHeader("Cache-Control", "no-cache").
+		SetHeader("Origin", "https://claude.ai").
+		SetHeader("Referer", "https://claude.ai/new").
+		SetHeader("Content-Type", "application/json").
+		SetBody(reqBody).
+		SetSuccessResult(&result).
+		Post(authURL)
+
+	if err != nil {
+		logger.LegacyPrintf("repository.claude_oauth", "[OAuth] Step 2 FAILED - Request error: %v", err)
+		return "", fmt.Errorf("request failed: %w", err)
+	}
+
+	logger.LegacyPrintf("repository.claude_oauth", "[OAuth] Step 2 Response - Status: %d, Body: %s", resp.StatusCode, logredact.RedactJSON(resp.Bytes()))
+
+	if !resp.IsSuccessState() {
+		return "", fmt.Errorf("failed to get authorization code: status %d, body: %s", resp.StatusCode, resp.String())
+	}
+
+	if result.RedirectURI == "" {
+		return "", fmt.Errorf("no redirect_uri in response")
+	}
+
+	parsedURL, err := url.Parse(result.RedirectURI)
+	if err != nil {
+		return "", fmt.Errorf("failed to parse redirect_uri: %w", err)
+	}
+
+	queryParams := parsedURL.Query()
+	authCode := queryParams.Get("code")
+	responseState := queryParams.Get("state")
+
+	if authCode == "" {
+		return "", fmt.Errorf("no authorization code in redirect_uri")
+	}
+
+	fullCode := authCode
+	if responseState != "" {
+		fullCode = authCode + "#" + responseState
+	}
+
+	logger.LegacyPrintf("repository.claude_oauth", "[OAuth] Step 2 SUCCESS - Got authorization code")
+	return fullCode, nil
+}
+
+func (s *claudeOAuthService) ExchangeCodeForToken(ctx context.Context, code, codeVerifier, state, proxyURL string, isSetupToken bool) (*oauth.TokenResponse, error) {
+	client, err := s.clientFactory(proxyURL)
+	if err != nil {
+		return nil, fmt.Errorf("create HTTP client: %w", err)
+	}
+
+	// Parse code which may contain state in format "authCode#state"
+	authCode := code
+	codeState := ""
+	if idx := strings.Index(code, "#"); idx != -1 {
+		authCode = code[:idx]
+		codeState = code[idx+1:]
+	}
+
+	reqBody := map[string]any{
+		"code":          authCode,
+		"grant_type":    "authorization_code",
+		"client_id":     oauth.ClientID,
+		"redirect_uri":  oauth.RedirectURI,
+		"code_verifier": codeVerifier,
+	}
+
+	if codeState != "" {
+		reqBody["state"] = codeState
+	}
+
+	// Setup token requires longer expiration (1 year)
+	if isSetupToken {
+		reqBody["expires_in"] = 31536000 // 365 * 24 * 60 * 60 seconds
+	}
+
+	logger.LegacyPrintf("repository.claude_oauth", "[OAuth] Step 3: Exchanging code for token at %s", s.tokenURL)
+	reqBodyJSON, _ := json.Marshal(logredact.RedactMap(reqBody))
+	logger.LegacyPrintf("repository.claude_oauth", "[OAuth] Step 3 Request Body: %s", string(reqBodyJSON))
+
+	var tokenResp oauth.TokenResponse
+
+	resp, err := client.R().
+		SetContext(ctx).
+		SetHeader("Accept", "application/json, text/plain, */*").
+		SetHeader("Content-Type", "application/json").
+		SetHeader("User-Agent", "axios/1.8.4").
+		SetBody(reqBody).
+		SetSuccessResult(&tokenResp).
+		Post(s.tokenURL)
+
+	if err != nil {
+		logger.LegacyPrintf("repository.claude_oauth", "[OAuth] Step 3 FAILED - Request error: %v", err)
+		return nil, fmt.Errorf("request failed: %w", err)
+	}
+
+	logger.LegacyPrintf("repository.claude_oauth", "[OAuth] Step 3 Response - Status: %d, Body: %s", resp.StatusCode, logredact.RedactJSON(resp.Bytes()))
+
+	if !resp.IsSuccessState() {
+		return nil, fmt.Errorf("token exchange failed: status %d, body: %s", resp.StatusCode, resp.String())
+	}
+
+	logger.LegacyPrintf("repository.claude_oauth", "[OAuth] Step 3 SUCCESS - Got access token")
+	return &tokenResp, nil
+}
+
+func (s *claudeOAuthService) RefreshToken(ctx context.Context, refreshToken, proxyURL string) (*oauth.TokenResponse, error) {
+	client, err := s.clientFactory(proxyURL)
+	if err != nil {
+		return nil, fmt.Errorf("create HTTP client: %w", err)
+	}
+
+	reqBody := map[string]any{
+		"grant_type":    "refresh_token",
+		"refresh_token": refreshToken,
+		"client_id":     oauth.ClientID,
+	}
+
+	var tokenResp oauth.TokenResponse
+
+	resp, err := client.R().
+		SetContext(ctx).
+		SetHeader("Accept", "application/json, text/plain, */*").
+		SetHeader("Content-Type", "application/json").
+		SetHeader("User-Agent", "axios/1.8.4").
+		SetBody(reqBody).
+		SetSuccessResult(&tokenResp).
+		Post(s.tokenURL)
+
+	if err != nil {
+		return nil, fmt.Errorf("request failed: %w", err)
+	}
+
+	if !resp.IsSuccessState() {
+		return nil, fmt.Errorf("token refresh failed: status %d, body: %s", resp.StatusCode, resp.String())
+	}
+
+	return &tokenResp, nil
+}
+
+func createReqClient(proxyURL string) (*req.Client, error) {
+	// 禁用 CookieJar，确保每次授权都是干净的会话
+	client := req.C().
+		SetTimeout(60 * time.Second).
+		ImpersonateChrome().
+		SetCookieJar(nil) // 禁用 CookieJar
+
+	trimmed, _, err := proxyurl.Parse(proxyURL)
+	if err != nil {
+		return nil, err
+	}
+	if trimmed != "" {
+		client.SetProxyURL(trimmed)
+	}
+
+	return client, nil
+}

llm-gateway-competitors/sub2api-tar/backend/internal/repository/claude_oauth_service_test.go

@@ -0,0 +1,396 @@
+package repository
+
+import (
+	"context"
+	"encoding/json"
+	"io"
+	"net/http"
+	"strings"
+	"testing"
+
+	"github.com/Wei-Shaw/sub2api/internal/pkg/oauth"
+	"github.com/imroc/req/v3"
+	"github.com/stretchr/testify/require"
+	"github.com/stretchr/testify/suite"
+)
+
+type ClaudeOAuthServiceSuite struct {
+	suite.Suite
+	client *claudeOAuthService
+}
+
+// requestCapture holds captured request data for assertions in the main goroutine.
+type requestCapture struct {
+	path        string
+	method      string
+	cookies     []*http.Cookie
+	body        []byte
+	bodyJSON    map[string]any
+	contentType string
+}
+
+func newTestReqClient(rt http.RoundTripper) *req.Client {
+	c := req.C()
+	c.GetClient().Transport = rt
+	return c
+}
+
+func (s *ClaudeOAuthServiceSuite) TestGetOrganizationUUID() {
+	tests := []struct {
+		name       string
+		handler    http.HandlerFunc
+		wantErr    bool
+		errContain string
+		wantUUID   string
+		validate   func(captured requestCapture)
+	}{
+		{
+			name: "success",
+			handler: func(w http.ResponseWriter, r *http.Request) {
+				w.Header().Set("Content-Type", "application/json")
+				_, _ = w.Write([]byte(`[{"uuid":"org-1"}]`))
+			},
+			wantUUID: "org-1",
+			validate: func(captured requestCapture) {
+				require.Equal(s.T(), "/api/organizations", captured.path, "unexpected path")
+				require.Len(s.T(), captured.cookies, 1, "expected 1 cookie")
+				require.Equal(s.T(), "sessionKey", captured.cookies[0].Name)
+				require.Equal(s.T(), "sess", captured.cookies[0].Value)
+			},
+		},
+		{
+			name: "non_200_returns_error",
+			handler: func(w http.ResponseWriter, r *http.Request) {
+				w.WriteHeader(http.StatusUnauthorized)
+				_, _ = w.Write([]byte("unauthorized"))
+			},
+			wantErr:    true,
+			errContain: "401",
+		},
+		{
+			name: "invalid_json_returns_error",
+			handler: func(w http.ResponseWriter, r *http.Request) {
+				w.Header().Set("Content-Type", "application/json")
+				_, _ = w.Write([]byte("not-json"))
+			},
+			wantErr: true,
+		},
+	}
+
+	for _, tt := range tests {
+		s.Run(tt.name, func() {
+			var captured requestCapture
+
+			rt := newInProcessTransport(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+				captured.path = r.URL.Path
+				captured.cookies = r.Cookies()
+				tt.handler(w, r)
+			}), nil)
+
+			client, ok := NewClaudeOAuthClient().(*claudeOAuthService)
+			require.True(s.T(), ok, "type assertion failed")
+			s.client = client
+			s.client.baseURL = "http://in-process"
+			s.client.clientFactory = func(string) (*req.Client, error) { return newTestReqClient(rt), nil }
+
+			got, err := s.client.GetOrganizationUUID(context.Background(), "sess", "")
+
+			if tt.wantErr {
+				require.Error(s.T(), err)
+				if tt.errContain != "" {
+					require.ErrorContains(s.T(), err, tt.errContain)
+				}
+				return
+			}
+
+			require.NoError(s.T(), err)
+			require.Equal(s.T(), tt.wantUUID, got)
+			if tt.validate != nil {
+				tt.validate(captured)
+			}
+		})
+	}
+}
+
+func (s *ClaudeOAuthServiceSuite) TestGetAuthorizationCode() {
+	tests := []struct {
+		name     string
+		handler  http.HandlerFunc
+		wantErr  bool
+		wantCode string
+		validate func(captured requestCapture)
+	}{
+		{
+			name: "parses_redirect_uri",
+			handler: func(w http.ResponseWriter, r *http.Request) {
+				w.Header().Set("Content-Type", "application/json")
+				_ = json.NewEncoder(w).Encode(map[string]string{
+					"redirect_uri": oauth.RedirectURI + "?code=AUTH&state=STATE",
+				})
+			},
+			wantCode: "AUTH#STATE",
+			validate: func(captured requestCapture) {
+				require.True(s.T(), strings.HasPrefix(captured.path, "/v1/oauth/") && strings.HasSuffix(captured.path, "/authorize"), "unexpected path: %s", captured.path)
+				require.Equal(s.T(), http.MethodPost, captured.method, "expected POST")
+				require.Len(s.T(), captured.cookies, 1, "expected 1 cookie")
+				require.Equal(s.T(), "sess", captured.cookies[0].Value)
+				require.Equal(s.T(), "org-1", captured.bodyJSON["organization_uuid"])
+				require.Equal(s.T(), oauth.ClientID, captured.bodyJSON["client_id"])
+				require.Equal(s.T(), oauth.RedirectURI, captured.bodyJSON["redirect_uri"])
+				require.Equal(s.T(), "st", captured.bodyJSON["state"])
+			},
+		},
+		{
+			name: "missing_code_returns_error",
+			handler: func(w http.ResponseWriter, r *http.Request) {
+				w.Header().Set("Content-Type", "application/json")
+				_ = json.NewEncoder(w).Encode(map[string]string{
+					"redirect_uri": oauth.RedirectURI + "?state=STATE", // no code
+				})
+			},
+			wantErr: true,
+		},
+	}
+
+	for _, tt := range tests {
+		s.Run(tt.name, func() {
+			var captured requestCapture
+
+			rt := newInProcessTransport(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+				captured.path = r.URL.Path
+				captured.method = r.Method
+				captured.cookies = r.Cookies()
+				captured.body, _ = io.ReadAll(r.Body)
+				_ = json.Unmarshal(captured.body, &captured.bodyJSON)
+				tt.handler(w, r)
+			}), nil)
+
+			client, ok := NewClaudeOAuthClient().(*claudeOAuthService)
+			require.True(s.T(), ok, "type assertion failed")
+			s.client = client
+			s.client.baseURL = "http://in-process"
+			s.client.clientFactory = func(string) (*req.Client, error) { return newTestReqClient(rt), nil }
+
+			code, err := s.client.GetAuthorizationCode(context.Background(), "sess", "org-1", oauth.ScopeInference, "cc", "st", "")
+
+			if tt.wantErr {
+				require.Error(s.T(), err)
+				return
+			}
+
+			require.NoError(s.T(), err)
+			require.Equal(s.T(), tt.wantCode, code)
+			if tt.validate != nil {
+				tt.validate(captured)
+			}
+		})
+	}
+}
+
+func (s *ClaudeOAuthServiceSuite) TestExchangeCodeForToken() {
+	tests := []struct {
+		name         string
+		handler      http.HandlerFunc
+		code         string
+		isSetupToken bool
+		wantErr      bool
+		wantResp     *oauth.TokenResponse
+		validate     func(captured requestCapture)
+	}{
+		{
+			name: "sends_state_when_embedded",
+			handler: func(w http.ResponseWriter, r *http.Request) {
+				w.Header().Set("Content-Type", "application/json")
+				_ = json.NewEncoder(w).Encode(oauth.TokenResponse{
+					AccessToken:  "at",
+					TokenType:    "bearer",
+					ExpiresIn:    3600,
+					RefreshToken: "rt",
+					Scope:        "s",
+				})
+			},
+			code:         "AUTH#STATE2",
+			isSetupToken: false,
+			wantResp: &oauth.TokenResponse{
+				AccessToken:  "at",
+				RefreshToken: "rt",
+			},
+			validate: func(captured requestCapture) {
+				require.Equal(s.T(), http.MethodPost, captured.method, "expected POST")
+				require.True(s.T(), strings.HasPrefix(captured.contentType, "application/json"), "unexpected content-type")
+				require.Equal(s.T(), "AUTH", captured.bodyJSON["code"])
+				require.Equal(s.T(), "STATE2", captured.bodyJSON["state"])
+				require.Equal(s.T(), oauth.ClientID, captured.bodyJSON["client_id"])
+				require.Equal(s.T(), oauth.RedirectURI, captured.bodyJSON["redirect_uri"])
+				require.Equal(s.T(), "ver", captured.bodyJSON["code_verifier"])
+				// Regular OAuth should not include expires_in
+				require.Nil(s.T(), captured.bodyJSON["expires_in"], "regular OAuth should not include expires_in")
+			},
+		},
+		{
+			name: "setup_token_includes_expires_in",
+			handler: func(w http.ResponseWriter, r *http.Request) {
+				w.Header().Set("Content-Type", "application/json")
+				_ = json.NewEncoder(w).Encode(oauth.TokenResponse{
+					AccessToken: "at",
+					TokenType:   "bearer",
+					ExpiresIn:   31536000,
+				})
+			},
+			code:         "AUTH",
+			isSetupToken: true,
+			wantResp: &oauth.TokenResponse{
+				AccessToken: "at",
+			},
+			validate: func(captured requestCapture) {
+				// Setup token should include expires_in with 1 year value
+				require.Equal(s.T(), float64(31536000), captured.bodyJSON["expires_in"],
+					"setup token should include expires_in: 31536000")
+			},
+		},
+		{
+			name: "non_200_returns_error",
+			handler: func(w http.ResponseWriter, r *http.Request) {
+				w.WriteHeader(http.StatusBadRequest)
+				_, _ = w.Write([]byte("bad request"))
+			},
+			code:         "AUTH",
+			isSetupToken: false,
+			wantErr:      true,
+		},
+	}
+
+	for _, tt := range tests {
+		s.Run(tt.name, func() {
+			var captured requestCapture
+
+			rt := newInProcessTransport(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+				captured.method = r.Method
+				captured.contentType = r.Header.Get("Content-Type")
+				captured.body, _ = io.ReadAll(r.Body)
+				_ = json.Unmarshal(captured.body, &captured.bodyJSON)
+				tt.handler(w, r)
+			}), nil)
+
+			client, ok := NewClaudeOAuthClient().(*claudeOAuthService)
+			require.True(s.T(), ok, "type assertion failed")
+			s.client = client
+			s.client.tokenURL = "http://in-process/token"
+			s.client.clientFactory = func(string) (*req.Client, error) { return newTestReqClient(rt), nil }
+
+			resp, err := s.client.ExchangeCodeForToken(context.Background(), tt.code, "ver", "", "", tt.isSetupToken)
+
+			if tt.wantErr {
+				require.Error(s.T(), err)
+				return
+			}
+
+			require.NoError(s.T(), err)
+			require.Equal(s.T(), tt.wantResp.AccessToken, resp.AccessToken)
+			require.Equal(s.T(), tt.wantResp.RefreshToken, resp.RefreshToken)
+			if tt.validate != nil {
+				tt.validate(captured)
+			}
+		})
+	}
+}
+
+func (s *ClaudeOAuthServiceSuite) TestRefreshToken() {
+	tests := []struct {
+		name     string
+		handler  http.HandlerFunc
+		wantErr  bool
+		wantResp *oauth.TokenResponse
+		validate func(captured requestCapture)
+	}{
+		{
+			name: "sends_json_format",
+			handler: func(w http.ResponseWriter, r *http.Request) {
+				w.Header().Set("Content-Type", "application/json")
+				_ = json.NewEncoder(w).Encode(oauth.TokenResponse{
+					AccessToken:  "new_access_token",
+					TokenType:    "bearer",
+					ExpiresIn:    28800,
+					RefreshToken: "new_refresh_token",
+					Scope:        "user:profile user:inference",
+				})
+			},
+			wantResp: &oauth.TokenResponse{
+				AccessToken:  "new_access_token",
+				RefreshToken: "new_refresh_token",
+			},
+			validate: func(captured requestCapture) {
+				require.Equal(s.T(), http.MethodPost, captured.method, "expected POST")
+				// 验证使用 JSON 格式（不是 form 格式）
+				require.True(s.T(), strings.HasPrefix(captured.contentType, "application/json"),
+					"expected JSON content-type, got: %s", captured.contentType)
+				// 验证 JSON body 内容
+				require.Equal(s.T(), "refresh_token", captured.bodyJSON["grant_type"])
+				require.Equal(s.T(), "rt", captured.bodyJSON["refresh_token"])
+				require.Equal(s.T(), oauth.ClientID, captured.bodyJSON["client_id"])
+			},
+		},
+		{
+			name: "returns_new_refresh_token",
+			handler: func(w http.ResponseWriter, r *http.Request) {
+				w.Header().Set("Content-Type", "application/json")
+				_ = json.NewEncoder(w).Encode(oauth.TokenResponse{
+					AccessToken:  "at",
+					TokenType:    "bearer",
+					ExpiresIn:    28800,
+					RefreshToken: "rotated_rt", // Anthropic rotates refresh tokens
+				})
+			},
+			wantResp: &oauth.TokenResponse{
+				AccessToken:  "at",
+				RefreshToken: "rotated_rt",
+			},
+		},
+		{
+			name: "non_200_returns_error",
+			handler: func(w http.ResponseWriter, r *http.Request) {
+				w.WriteHeader(http.StatusUnauthorized)
+				_, _ = w.Write([]byte(`{"error":"invalid_grant"}`))
+			},
+			wantErr: true,
+		},
+	}
+
+	for _, tt := range tests {
+		s.Run(tt.name, func() {
+			var captured requestCapture
+
+			rt := newInProcessTransport(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+				captured.method = r.Method
+				captured.contentType = r.Header.Get("Content-Type")
+				captured.body, _ = io.ReadAll(r.Body)
+				_ = json.Unmarshal(captured.body, &captured.bodyJSON)
+				tt.handler(w, r)
+			}), nil)
+
+			client, ok := NewClaudeOAuthClient().(*claudeOAuthService)
+			require.True(s.T(), ok, "type assertion failed")
+			s.client = client
+			s.client.tokenURL = "http://in-process/token"
+			s.client.clientFactory = func(string) (*req.Client, error) { return newTestReqClient(rt), nil }
+
+			resp, err := s.client.RefreshToken(context.Background(), "rt", "")
+
+			if tt.wantErr {
+				require.Error(s.T(), err)
+				return
+			}
+
+			require.NoError(s.T(), err)
+			require.Equal(s.T(), tt.wantResp.AccessToken, resp.AccessToken)
+			require.Equal(s.T(), tt.wantResp.RefreshToken, resp.RefreshToken)
+			if tt.validate != nil {
+				tt.validate(captured)
+			}
+		})
+	}
+}
+
+func TestClaudeOAuthServiceSuite(t *testing.T) {
+	suite.Run(t, new(ClaudeOAuthServiceSuite))
+}

llm-gateway-competitors/sub2api-tar/backend/internal/repository/claude_usage_service.go

@@ -0,0 +1,109 @@
+package repository
+
+import (
+	"context"
+	"encoding/json"
+	"fmt"
+	"io"
+	"net/http"
+	"time"
+
+	infraerrors "github.com/Wei-Shaw/sub2api/internal/pkg/errors"
+	"github.com/Wei-Shaw/sub2api/internal/pkg/httpclient"
+	"github.com/Wei-Shaw/sub2api/internal/service"
+)
+
+const defaultClaudeUsageURL = "https://api.anthropic.com/api/oauth/usage"
+
+// 默认 User-Agent，与用户抓包的请求一致
+const defaultUsageUserAgent = "claude-code/2.1.7"
+
+type claudeUsageService struct {
+	usageURL          string
+	allowPrivateHosts bool
+	httpUpstream      service.HTTPUpstream
+}
+
+// NewClaudeUsageFetcher 创建 Claude 用量获取服务
+// httpUpstream: 可选，如果提供则支持 TLS 指纹伪装
+func NewClaudeUsageFetcher(httpUpstream service.HTTPUpstream) service.ClaudeUsageFetcher {
+	return &claudeUsageService{
+		usageURL:     defaultClaudeUsageURL,
+		httpUpstream: httpUpstream,
+	}
+}
+
+// FetchUsage 简单版本，不支持 TLS 指纹（向后兼容）
+func (s *claudeUsageService) FetchUsage(ctx context.Context, accessToken, proxyURL string) (*service.ClaudeUsageResponse, error) {
+	return s.FetchUsageWithOptions(ctx, &service.ClaudeUsageFetchOptions{
+		AccessToken: accessToken,
+		ProxyURL:    proxyURL,
+	})
+}
+
+// FetchUsageWithOptions 完整版本，支持 TLS 指纹和自定义 User-Agent
+func (s *claudeUsageService) FetchUsageWithOptions(ctx context.Context, opts *service.ClaudeUsageFetchOptions) (*service.ClaudeUsageResponse, error) {
+	if opts == nil {
+		return nil, fmt.Errorf("options is nil")
+	}
+
+	// 创建请求
+	req, err := http.NewRequestWithContext(ctx, "GET", s.usageURL, nil)
+	if err != nil {
+		return nil, fmt.Errorf("create request failed: %w", err)
+	}
+
+	// 设置请求头（与抓包一致，但不设置 Accept-Encoding，让 Go 自动处理压缩）
+	req.Header.Set("Accept", "application/json, text/plain, */*")
+	req.Header.Set("Content-Type", "application/json")
+	req.Header.Set("Authorization", "Bearer "+opts.AccessToken)
+	req.Header.Set("anthropic-beta", "oauth-2025-04-20")
+
+	// 设置 User-Agent（优先使用缓存的 Fingerprint，否则使用默认值）
+	userAgent := defaultUsageUserAgent
+	if opts.Fingerprint != nil && opts.Fingerprint.UserAgent != "" {
+		userAgent = opts.Fingerprint.UserAgent
+	}
+	req.Header.Set("User-Agent", userAgent)
+
+	var resp *http.Response
+
+	// 如果启用 TLS 指纹且有 HTTPUpstream，使用 DoWithTLS
+	if opts.EnableTLSFingerprint && s.httpUpstream != nil {
+		// accountConcurrency 传 0 使用默认连接池配置，usage 请求不需要特殊的并发设置
+		resp, err = s.httpUpstream.DoWithTLS(req, opts.ProxyURL, opts.AccountID, 0, true)
+		if err != nil {
+			return nil, fmt.Errorf("request with TLS fingerprint failed: %w", err)
+		}
+	} else {
+		// 不启用 TLS 指纹，使用普通 HTTP 客户端
+		client, err := httpclient.GetClient(httpclient.Options{
+			ProxyURL:           opts.ProxyURL,
+			Timeout:            30 * time.Second,
+			ValidateResolvedIP: true,
+			AllowPrivateHosts:  s.allowPrivateHosts,
+		})
+		if err != nil {
+			return nil, fmt.Errorf("create http client failed: %w", err)
+		}
+
+		resp, err = client.Do(req)
+		if err != nil {
+			return nil, fmt.Errorf("request failed: %w", err)
+		}
+	}
+	defer func() { _ = resp.Body.Close() }()
+
+	if resp.StatusCode != http.StatusOK {
+		body, _ := io.ReadAll(resp.Body)
+		msg := fmt.Sprintf("API returned status %d: %s", resp.StatusCode, string(body))
+		return nil, infraerrors.New(http.StatusInternalServerError, "UPSTREAM_ERROR", msg)
+	}
+
+	var usageResp service.ClaudeUsageResponse
+	if err := json.NewDecoder(resp.Body).Decode(&usageResp); err != nil {
+		return nil, fmt.Errorf("decode response failed: %w", err)
+	}
+
+	return &usageResp, nil
+}

llm-gateway-competitors/sub2api-tar/backend/internal/repository/claude_usage_service_test.go

@@ -0,0 +1,128 @@
+package repository
+
+import (
+	"context"
+	"io"
+	"net/http"
+	"net/http/httptest"
+	"testing"
+
+	"github.com/stretchr/testify/require"
+	"github.com/stretchr/testify/suite"
+)
+
+type ClaudeUsageServiceSuite struct {
+	suite.Suite
+	srv     *httptest.Server
+	fetcher *claudeUsageService
+}
+
+func (s *ClaudeUsageServiceSuite) TearDownTest() {
+	if s.srv != nil {
+		s.srv.Close()
+		s.srv = nil
+	}
+}
+
+// usageRequestCapture holds captured request data for assertions in the main goroutine.
+type usageRequestCapture struct {
+	authorization string
+	anthropicBeta string
+}
+
+func (s *ClaudeUsageServiceSuite) TestFetchUsage_Success() {
+	var captured usageRequestCapture
+
+	s.srv = newLocalTestServer(s.T(), http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+		captured.authorization = r.Header.Get("Authorization")
+		captured.anthropicBeta = r.Header.Get("anthropic-beta")
+
+		w.Header().Set("Content-Type", "application/json")
+		_, _ = io.WriteString(w, `{
+  "five_hour": {"utilization": 12.5, "resets_at": "2025-01-01T00:00:00Z"},
+  "seven_day": {"utilization": 34.0, "resets_at": "2025-01-08T00:00:00Z"},
+  "seven_day_sonnet": {"utilization": 56.0, "resets_at": "2025-01-08T00:00:00Z"}
+}`)
+	}))
+
+	s.fetcher = &claudeUsageService{
+		usageURL:          s.srv.URL,
+		allowPrivateHosts: true,
+	}
+
+	resp, err := s.fetcher.FetchUsage(context.Background(), "at", "")
+	require.NoError(s.T(), err, "FetchUsage")
+	require.Equal(s.T(), 12.5, resp.FiveHour.Utilization, "FiveHour utilization mismatch")
+	require.Equal(s.T(), 34.0, resp.SevenDay.Utilization, "SevenDay utilization mismatch")
+	require.Equal(s.T(), 56.0, resp.SevenDaySonnet.Utilization, "SevenDaySonnet utilization mismatch")
+
+	// Assertions on captured request data
+	require.Equal(s.T(), "Bearer at", captured.authorization, "Authorization header mismatch")
+	require.Equal(s.T(), "oauth-2025-04-20", captured.anthropicBeta, "anthropic-beta header mismatch")
+}
+
+func (s *ClaudeUsageServiceSuite) TestFetchUsage_NonOK() {
+	s.srv = newLocalTestServer(s.T(), http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+		w.WriteHeader(http.StatusUnauthorized)
+		_, _ = io.WriteString(w, "nope")
+	}))
+
+	s.fetcher = &claudeUsageService{
+		usageURL:          s.srv.URL,
+		allowPrivateHosts: true,
+	}
+
+	_, err := s.fetcher.FetchUsage(context.Background(), "at", "")
+	require.Error(s.T(), err)
+	require.ErrorContains(s.T(), err, "status 401")
+	require.ErrorContains(s.T(), err, "nope")
+}
+
+func (s *ClaudeUsageServiceSuite) TestFetchUsage_BadJSON() {
+	s.srv = newLocalTestServer(s.T(), http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+		w.Header().Set("Content-Type", "application/json")
+		_, _ = io.WriteString(w, "not-json")
+	}))
+
+	s.fetcher = &claudeUsageService{
+		usageURL:          s.srv.URL,
+		allowPrivateHosts: true,
+	}
+
+	_, err := s.fetcher.FetchUsage(context.Background(), "at", "")
+	require.Error(s.T(), err)
+	require.ErrorContains(s.T(), err, "decode response failed")
+}
+
+func (s *ClaudeUsageServiceSuite) TestFetchUsage_ContextCancel() {
+	s.srv = newLocalTestServer(s.T(), http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+		// Never respond - simulate slow server
+		<-r.Context().Done()
+	}))
+
+	s.fetcher = &claudeUsageService{
+		usageURL:          s.srv.URL,
+		allowPrivateHosts: true,
+	}
+
+	ctx, cancel := context.WithCancel(context.Background())
+	cancel() // Cancel immediately
+
+	_, err := s.fetcher.FetchUsage(ctx, "at", "")
+	require.Error(s.T(), err, "expected error for cancelled context")
+}
+
+func (s *ClaudeUsageServiceSuite) TestFetchUsage_InvalidProxyReturnsError() {
+	s.fetcher = &claudeUsageService{
+		usageURL:          "http://example.com",
+		allowPrivateHosts: true,
+	}
+
+	_, err := s.fetcher.FetchUsage(context.Background(), "at", "://bad-proxy-url")
+	require.Error(s.T(), err)
+	require.ErrorContains(s.T(), err, "create http client failed")
+}
+
+func TestClaudeUsageServiceSuite(t *testing.T) {
+	suite.Run(t, new(ClaudeUsageServiceSuite))
+}

llm-gateway-competitors/sub2api-tar/backend/internal/repository/concurrency_cache.go

@@ -0,0 +1,564 @@
+package repository
+
+import (
+	"context"
+	"errors"
+	"fmt"
+	"strconv"
+
+	"github.com/Wei-Shaw/sub2api/internal/service"
+	"github.com/redis/go-redis/v9"
+)
+
+// 并发控制缓存常量定义
+//
+// 性能优化说明：
+// 原实现使用 SCAN 命令遍历独立的槽位键（concurrency:account:{id}:{requestID}），
+// 在高并发场景下 SCAN 需要多次往返，且遍历大量键时性能下降明显。
+//
+// 新实现改用 Redis 有序集合（Sorted Set）：
+// 1. 每个账号/用户只有一个键，成员为 requestID，分数为时间戳
+// 2. 使用 ZCARD 原子获取并发数，时间复杂度 O(1)
+// 3. 使用 ZREMRANGEBYSCORE 清理过期槽位，避免手动管理 TTL
+// 4. 单次 Redis 调用完成计数，减少网络往返
+const (
+	// 并发槽位键前缀（有序集合）
+	// 格式: concurrency:account:{accountID}
+	accountSlotKeyPrefix = "concurrency:account:"
+	// 格式: concurrency:user:{userID}
+	userSlotKeyPrefix = "concurrency:user:"
+	// 等待队列计数器格式: concurrency:wait:{userID}
+	waitQueueKeyPrefix = "concurrency:wait:"
+	// 账号级等待队列计数器格式: wait:account:{accountID}
+	accountWaitKeyPrefix = "wait:account:"
+
+	// 默认槽位过期时间（分钟），可通过配置覆盖
+	defaultSlotTTLMinutes = 15
+)
+
+var (
+	// acquireScript 使用有序集合计数并在未达上限时添加槽位
+	// 使用 Redis TIME 命令获取服务器时间，避免多实例时钟不同步问题
+	// KEYS[1] = 有序集合键 (concurrency:account:{id} / concurrency:user:{id})
+	// ARGV[1] = maxConcurrency
+	// ARGV[2] = TTL（秒）
+	// ARGV[3] = requestID
+	acquireScript = redis.NewScript(`
+		local key = KEYS[1]
+		local maxConcurrency = tonumber(ARGV[1])
+		local ttl = tonumber(ARGV[2])
+		local requestID = ARGV[3]
+
+		-- 使用 Redis 服务器时间，确保多实例时钟一致
+		local timeResult = redis.call('TIME')
+		local now = tonumber(timeResult[1])
+		local expireBefore = now - ttl
+
+		-- 清理过期槽位
+		redis.call('ZREMRANGEBYSCORE', key, '-inf', expireBefore)
+
+		-- 检查是否已存在（支持重试场景刷新时间戳）
+		local exists = redis.call('ZSCORE', key, requestID)
+		if exists ~= false then
+			redis.call('ZADD', key, now, requestID)
+			redis.call('EXPIRE', key, ttl)
+			return 1
+		end
+
+		-- 检查是否达到并发上限
+		local count = redis.call('ZCARD', key)
+		if count < maxConcurrency then
+			redis.call('ZADD', key, now, requestID)
+			redis.call('EXPIRE', key, ttl)
+			return 1
+		end
+
+		return 0
+	`)
+
+	// getCountScript 统计有序集合中的槽位数量并清理过期条目
+	// 使用 Redis TIME 命令获取服务器时间
+	// KEYS[1] = 有序集合键
+	// ARGV[1] = TTL（秒）
+	getCountScript = redis.NewScript(`
+		local key = KEYS[1]
+		local ttl = tonumber(ARGV[1])
+
+		-- 使用 Redis 服务器时间
+		local timeResult = redis.call('TIME')
+		local now = tonumber(timeResult[1])
+		local expireBefore = now - ttl
+
+		redis.call('ZREMRANGEBYSCORE', key, '-inf', expireBefore)
+		return redis.call('ZCARD', key)
+	`)
+
+	// incrementWaitScript - refreshes TTL on each increment to keep queue depth accurate
+	// KEYS[1] = wait queue key
+	// ARGV[1] = maxWait
+	// ARGV[2] = TTL in seconds
+	incrementWaitScript = redis.NewScript(`
+		local current = redis.call('GET', KEYS[1])
+		if current == false then
+			current = 0
+		else
+			current = tonumber(current)
+		end
+
+		if current >= tonumber(ARGV[1]) then
+			return 0
+		end
+
+		local newVal = redis.call('INCR', KEYS[1])
+
+		-- Refresh TTL so long-running traffic doesn't expire active queue counters.
+		redis.call('EXPIRE', KEYS[1], ARGV[2])
+
+			return 1
+		`)
+
+	// incrementAccountWaitScript - account-level wait queue count (refresh TTL on each increment)
+	incrementAccountWaitScript = redis.NewScript(`
+			local current = redis.call('GET', KEYS[1])
+			if current == false then
+				current = 0
+			else
+				current = tonumber(current)
+			end
+
+			if current >= tonumber(ARGV[1]) then
+				return 0
+			end
+
+			local newVal = redis.call('INCR', KEYS[1])
+
+			-- Refresh TTL so long-running traffic doesn't expire active queue counters.
+			redis.call('EXPIRE', KEYS[1], ARGV[2])
+
+			return 1
+		`)
+
+	// decrementWaitScript - same as before
+	decrementWaitScript = redis.NewScript(`
+			local current = redis.call('GET', KEYS[1])
+			if current ~= false and tonumber(current) > 0 then
+				redis.call('DECR', KEYS[1])
+			end
+			return 1
+		`)
+
+	// cleanupExpiredSlotsScript 清理单个账号/用户有序集合中过期槽位
+	// KEYS[1] = 有序集合键
+	// ARGV[1] = TTL（秒）
+	cleanupExpiredSlotsScript = redis.NewScript(`
+		local key = KEYS[1]
+		local ttl = tonumber(ARGV[1])
+		local timeResult = redis.call('TIME')
+		local now = tonumber(timeResult[1])
+		local expireBefore = now - ttl
+		redis.call('ZREMRANGEBYSCORE', key, '-inf', expireBefore)
+		if redis.call('ZCARD', key) == 0 then
+			redis.call('DEL', key)
+		else
+			redis.call('EXPIRE', key, ttl)
+		end
+		return 1
+	`)
+
+	// startupCleanupScript 清理非当前进程前缀的槽位成员。
+	// KEYS 是有序集合键列表，ARGV[1] 是当前进程前缀，ARGV[2] 是槽位 TTL。
+	// 遍历每个 KEYS[i]，移除前缀不匹配的成员，清空后删 key，否则刷新 EXPIRE。
+	startupCleanupScript = redis.NewScript(`
+		local activePrefix = ARGV[1]
+		local slotTTL = tonumber(ARGV[2])
+		local removed = 0
+		for i = 1, #KEYS do
+			local key = KEYS[i]
+			local members = redis.call('ZRANGE', key, 0, -1)
+			for _, member in ipairs(members) do
+				if string.sub(member, 1, string.len(activePrefix)) ~= activePrefix then
+					removed = removed + redis.call('ZREM', key, member)
+				end
+			end
+			if redis.call('ZCARD', key) == 0 then
+				redis.call('DEL', key)
+			else
+				redis.call('EXPIRE', key, slotTTL)
+			end
+		end
+		return removed
+	`)
+)
+
+type concurrencyCache struct {
+	rdb                 *redis.Client
+	slotTTLSeconds      int // 槽位过期时间（秒）
+	waitQueueTTLSeconds int // 等待队列过期时间（秒）
+}
+
+// NewConcurrencyCache 创建并发控制缓存
+// slotTTLMinutes: 槽位过期时间（分钟），0 或负数使用默认值 15 分钟
+// waitQueueTTLSeconds: 等待队列过期时间（秒），0 或负数使用 slot TTL
+func NewConcurrencyCache(rdb *redis.Client, slotTTLMinutes int, waitQueueTTLSeconds int) service.ConcurrencyCache {
+	if slotTTLMinutes <= 0 {
+		slotTTLMinutes = defaultSlotTTLMinutes
+	}
+	if waitQueueTTLSeconds <= 0 {
+		waitQueueTTLSeconds = slotTTLMinutes * 60
+	}
+	return &concurrencyCache{
+		rdb:                 rdb,
+		slotTTLSeconds:      slotTTLMinutes * 60,
+		waitQueueTTLSeconds: waitQueueTTLSeconds,
+	}
+}
+
+// Helper functions for key generation
+func accountSlotKey(accountID int64) string {
+	return fmt.Sprintf("%s%d", accountSlotKeyPrefix, accountID)
+}
+
+func userSlotKey(userID int64) string {
+	return fmt.Sprintf("%s%d", userSlotKeyPrefix, userID)
+}
+
+func waitQueueKey(userID int64) string {
+	return fmt.Sprintf("%s%d", waitQueueKeyPrefix, userID)
+}
+
+func accountWaitKey(accountID int64) string {
+	return fmt.Sprintf("%s%d", accountWaitKeyPrefix, accountID)
+}
+
+// Account slot operations
+
+func (c *concurrencyCache) AcquireAccountSlot(ctx context.Context, accountID int64, maxConcurrency int, requestID string) (bool, error) {
+	key := accountSlotKey(accountID)
+	// 时间戳在 Lua 脚本内使用 Redis TIME 命令获取，确保多实例时钟一致
+	result, err := acquireScript.Run(ctx, c.rdb, []string{key}, maxConcurrency, c.slotTTLSeconds, requestID).Int()
+	if err != nil {
+		return false, err
+	}
+	return result == 1, nil
+}
+
+func (c *concurrencyCache) ReleaseAccountSlot(ctx context.Context, accountID int64, requestID string) error {
+	key := accountSlotKey(accountID)
+	return c.rdb.ZRem(ctx, key, requestID).Err()
+}
+
+func (c *concurrencyCache) GetAccountConcurrency(ctx context.Context, accountID int64) (int, error) {
+	key := accountSlotKey(accountID)
+	// 时间戳在 Lua 脚本内使用 Redis TIME 命令获取
+	result, err := getCountScript.Run(ctx, c.rdb, []string{key}, c.slotTTLSeconds).Int()
+	if err != nil {
+		return 0, err
+	}
+	return result, nil
+}
+
+func (c *concurrencyCache) GetAccountConcurrencyBatch(ctx context.Context, accountIDs []int64) (map[int64]int, error) {
+	if len(accountIDs) == 0 {
+		return map[int64]int{}, nil
+	}
+
+	now, err := c.rdb.Time(ctx).Result()
+	if err != nil {
+		return nil, fmt.Errorf("redis TIME: %w", err)
+	}
+	cutoffTime := now.Unix() - int64(c.slotTTLSeconds)
+
+	pipe := c.rdb.Pipeline()
+	type accountCmd struct {
+		accountID int64
+		zcardCmd  *redis.IntCmd
+	}
+	cmds := make([]accountCmd, 0, len(accountIDs))
+	for _, accountID := range accountIDs {
+		slotKey := accountSlotKeyPrefix + strconv.FormatInt(accountID, 10)
+		pipe.ZRemRangeByScore(ctx, slotKey, "-inf", strconv.FormatInt(cutoffTime, 10))
+		cmds = append(cmds, accountCmd{
+			accountID: accountID,
+			zcardCmd:  pipe.ZCard(ctx, slotKey),
+		})
+	}
+
+	if _, err := pipe.Exec(ctx); err != nil && !errors.Is(err, redis.Nil) {
+		return nil, fmt.Errorf("pipeline exec: %w", err)
+	}
+
+	result := make(map[int64]int, len(accountIDs))
+	for _, cmd := range cmds {
+		result[cmd.accountID] = int(cmd.zcardCmd.Val())
+	}
+	return result, nil
+}
+
+// User slot operations
+
+func (c *concurrencyCache) AcquireUserSlot(ctx context.Context, userID int64, maxConcurrency int, requestID string) (bool, error) {
+	key := userSlotKey(userID)
+	// 时间戳在 Lua 脚本内使用 Redis TIME 命令获取，确保多实例时钟一致
+	result, err := acquireScript.Run(ctx, c.rdb, []string{key}, maxConcurrency, c.slotTTLSeconds, requestID).Int()
+	if err != nil {
+		return false, err
+	}
+	return result == 1, nil
+}
+
+func (c *concurrencyCache) ReleaseUserSlot(ctx context.Context, userID int64, requestID string) error {
+	key := userSlotKey(userID)
+	return c.rdb.ZRem(ctx, key, requestID).Err()
+}
+
+func (c *concurrencyCache) GetUserConcurrency(ctx context.Context, userID int64) (int, error) {
+	key := userSlotKey(userID)
+	// 时间戳在 Lua 脚本内使用 Redis TIME 命令获取
+	result, err := getCountScript.Run(ctx, c.rdb, []string{key}, c.slotTTLSeconds).Int()
+	if err != nil {
+		return 0, err
+	}
+	return result, nil
+}
+
+// Wait queue operations
+
+func (c *concurrencyCache) IncrementWaitCount(ctx context.Context, userID int64, maxWait int) (bool, error) {
+	key := waitQueueKey(userID)
+	result, err := incrementWaitScript.Run(ctx, c.rdb, []string{key}, maxWait, c.waitQueueTTLSeconds).Int()
+	if err != nil {
+		return false, err
+	}
+	return result == 1, nil
+}
+
+func (c *concurrencyCache) DecrementWaitCount(ctx context.Context, userID int64) error {
+	key := waitQueueKey(userID)
+	_, err := decrementWaitScript.Run(ctx, c.rdb, []string{key}).Result()
+	return err
+}
+
+// Account wait queue operations
+
+func (c *concurrencyCache) IncrementAccountWaitCount(ctx context.Context, accountID int64, maxWait int) (bool, error) {
+	key := accountWaitKey(accountID)
+	result, err := incrementAccountWaitScript.Run(ctx, c.rdb, []string{key}, maxWait, c.waitQueueTTLSeconds).Int()
+	if err != nil {
+		return false, err
+	}
+	return result == 1, nil
+}
+
+func (c *concurrencyCache) DecrementAccountWaitCount(ctx context.Context, accountID int64) error {
+	key := accountWaitKey(accountID)
+	_, err := decrementWaitScript.Run(ctx, c.rdb, []string{key}).Result()
+	return err
+}
+
+func (c *concurrencyCache) GetAccountWaitingCount(ctx context.Context, accountID int64) (int, error) {
+	key := accountWaitKey(accountID)
+	val, err := c.rdb.Get(ctx, key).Int()
+	if err != nil && !errors.Is(err, redis.Nil) {
+		return 0, err
+	}
+	if errors.Is(err, redis.Nil) {
+		return 0, nil
+	}
+	return val, nil
+}
+
+func (c *concurrencyCache) GetAccountsLoadBatch(ctx context.Context, accounts []service.AccountWithConcurrency) (map[int64]*service.AccountLoadInfo, error) {
+	if len(accounts) == 0 {
+		return map[int64]*service.AccountLoadInfo{}, nil
+	}
+
+	// 使用 Pipeline 替代 Lua 脚本，兼容 Redis Cluster（Lua 内动态拼 key 会 CROSSSLOT）。
+	// 每个账号执行 3 个命令：ZREMRANGEBYSCORE（清理过期）、ZCARD（并发数）、GET（等待数）。
+	now, err := c.rdb.Time(ctx).Result()
+	if err != nil {
+		return nil, fmt.Errorf("redis TIME: %w", err)
+	}
+	cutoffTime := now.Unix() - int64(c.slotTTLSeconds)
+
+	pipe := c.rdb.Pipeline()
+
+	type accountCmds struct {
+		id             int64
+		maxConcurrency int
+		zcardCmd       *redis.IntCmd
+		getCmd         *redis.StringCmd
+	}
+	cmds := make([]accountCmds, 0, len(accounts))
+	for _, acc := range accounts {
+		slotKey := accountSlotKeyPrefix + strconv.FormatInt(acc.ID, 10)
+		waitKey := accountWaitKeyPrefix + strconv.FormatInt(acc.ID, 10)
+		pipe.ZRemRangeByScore(ctx, slotKey, "-inf", strconv.FormatInt(cutoffTime, 10))
+		ac := accountCmds{
+			id:             acc.ID,
+			maxConcurrency: acc.MaxConcurrency,
+			zcardCmd:       pipe.ZCard(ctx, slotKey),
+			getCmd:         pipe.Get(ctx, waitKey),
+		}
+		cmds = append(cmds, ac)
+	}
+
+	if _, err := pipe.Exec(ctx); err != nil && !errors.Is(err, redis.Nil) {
+		return nil, fmt.Errorf("pipeline exec: %w", err)
+	}
+
+	loadMap := make(map[int64]*service.AccountLoadInfo, len(accounts))
+	for _, ac := range cmds {
+		currentConcurrency := int(ac.zcardCmd.Val())
+		waitingCount := 0
+		if v, err := ac.getCmd.Int(); err == nil {
+			waitingCount = v
+		}
+		loadRate := 0
+		if ac.maxConcurrency > 0 {
+			loadRate = (currentConcurrency + waitingCount) * 100 / ac.maxConcurrency
+		}
+		loadMap[ac.id] = &service.AccountLoadInfo{
+			AccountID:          ac.id,
+			CurrentConcurrency: currentConcurrency,
+			WaitingCount:       waitingCount,
+			LoadRate:           loadRate,
+		}
+	}
+
+	return loadMap, nil
+}
+
+func (c *concurrencyCache) GetUsersLoadBatch(ctx context.Context, users []service.UserWithConcurrency) (map[int64]*service.UserLoadInfo, error) {
+	if len(users) == 0 {
+		return map[int64]*service.UserLoadInfo{}, nil
+	}
+
+	// 使用 Pipeline 替代 Lua 脚本，兼容 Redis Cluster。
+	now, err := c.rdb.Time(ctx).Result()
+	if err != nil {
+		return nil, fmt.Errorf("redis TIME: %w", err)
+	}
+	cutoffTime := now.Unix() - int64(c.slotTTLSeconds)
+
+	pipe := c.rdb.Pipeline()
+
+	type userCmds struct {
+		id             int64
+		maxConcurrency int
+		zcardCmd       *redis.IntCmd
+		getCmd         *redis.StringCmd
+	}
+	cmds := make([]userCmds, 0, len(users))
+	for _, u := range users {
+		slotKey := userSlotKeyPrefix + strconv.FormatInt(u.ID, 10)
+		waitKey := waitQueueKeyPrefix + strconv.FormatInt(u.ID, 10)
+		pipe.ZRemRangeByScore(ctx, slotKey, "-inf", strconv.FormatInt(cutoffTime, 10))
+		uc := userCmds{
+			id:             u.ID,
+			maxConcurrency: u.MaxConcurrency,
+			zcardCmd:       pipe.ZCard(ctx, slotKey),
+			getCmd:         pipe.Get(ctx, waitKey),
+		}
+		cmds = append(cmds, uc)
+	}
+
+	if _, err := pipe.Exec(ctx); err != nil && !errors.Is(err, redis.Nil) {
+		return nil, fmt.Errorf("pipeline exec: %w", err)
+	}
+
+	loadMap := make(map[int64]*service.UserLoadInfo, len(users))
+	for _, uc := range cmds {
+		currentConcurrency := int(uc.zcardCmd.Val())
+		waitingCount := 0
+		if v, err := uc.getCmd.Int(); err == nil {
+			waitingCount = v
+		}
+		loadRate := 0
+		if uc.maxConcurrency > 0 {
+			loadRate = (currentConcurrency + waitingCount) * 100 / uc.maxConcurrency
+		}
+		loadMap[uc.id] = &service.UserLoadInfo{
+			UserID:             uc.id,
+			CurrentConcurrency: currentConcurrency,
+			WaitingCount:       waitingCount,
+			LoadRate:           loadRate,
+		}
+	}
+
+	return loadMap, nil
+}
+
+func (c *concurrencyCache) CleanupExpiredAccountSlots(ctx context.Context, accountID int64) error {
+	key := accountSlotKey(accountID)
+	_, err := cleanupExpiredSlotsScript.Run(ctx, c.rdb, []string{key}, c.slotTTLSeconds).Result()
+	return err
+}
+
+func (c *concurrencyCache) CleanupStaleProcessSlots(ctx context.Context, activeRequestPrefix string) error {
+	if activeRequestPrefix == "" {
+		return nil
+	}
+
+	// 1. 清理有序集合中非当前进程前缀的成员
+	slotPatterns := []string{accountSlotKeyPrefix + "*", userSlotKeyPrefix + "*"}
+	for _, pattern := range slotPatterns {
+		if err := c.cleanupSlotsByPattern(ctx, pattern, activeRequestPrefix); err != nil {
+			return err
+		}
+	}
+
+	// 2. 删除所有等待队列计数器（重启后计数器失效）
+	waitPatterns := []string{accountWaitKeyPrefix + "*", waitQueueKeyPrefix + "*"}
+	for _, pattern := range waitPatterns {
+		if err := c.deleteKeysByPattern(ctx, pattern); err != nil {
+			return err
+		}
+	}
+
+	return nil
+}
+
+// cleanupSlotsByPattern 扫描匹配 pattern 的有序集合键，批量调用 Lua 脚本清理非当前进程成员。
+func (c *concurrencyCache) cleanupSlotsByPattern(ctx context.Context, pattern, activePrefix string) error {
+	const scanCount = 200
+	var cursor uint64
+	for {
+		keys, nextCursor, err := c.rdb.Scan(ctx, cursor, pattern, scanCount).Result()
+		if err != nil {
+			return fmt.Errorf("scan %s: %w", pattern, err)
+		}
+		if len(keys) > 0 {
+			_, err := startupCleanupScript.Run(ctx, c.rdb, keys, activePrefix, c.slotTTLSeconds).Result()
+			if err != nil {
+				return fmt.Errorf("cleanup slots %s: %w", pattern, err)
+			}
+		}
+		cursor = nextCursor
+		if cursor == 0 {
+			break
+		}
+	}
+	return nil
+}
+
+// deleteKeysByPattern 扫描匹配 pattern 的键并删除。
+func (c *concurrencyCache) deleteKeysByPattern(ctx context.Context, pattern string) error {
+	const scanCount = 200
+	var cursor uint64
+	for {
+		keys, nextCursor, err := c.rdb.Scan(ctx, cursor, pattern, scanCount).Result()
+		if err != nil {
+			return fmt.Errorf("scan %s: %w", pattern, err)
+		}
+		if len(keys) > 0 {
+			if err := c.rdb.Del(ctx, keys...).Err(); err != nil {
+				return fmt.Errorf("del %s: %w", pattern, err)
+			}
+		}
+		cursor = nextCursor
+		if cursor == 0 {
+			break
+		}
+	}
+	return nil
+}

llm-gateway-competitors/sub2api-tar/backend/internal/repository/concurrency_cache_benchmark_test.go

@@ -0,0 +1,135 @@
+package repository
+
+import (
+	"context"
+	"fmt"
+	"os"
+	"testing"
+	"time"
+
+	"github.com/redis/go-redis/v9"
+)
+
+// 基准测试用 TTL 配置
+const benchSlotTTLMinutes = 15
+
+var benchSlotTTL = time.Duration(benchSlotTTLMinutes) * time.Minute
+
+// BenchmarkAccountConcurrency 用于对比 SCAN 与有序集合的计数性能。
+func BenchmarkAccountConcurrency(b *testing.B) {
+	rdb := newBenchmarkRedisClient(b)
+	defer func() {
+		_ = rdb.Close()
+	}()
+
+	cache, _ := NewConcurrencyCache(rdb, benchSlotTTLMinutes, int(benchSlotTTL.Seconds())).(*concurrencyCache)
+	ctx := context.Background()
+
+	for _, size := range []int{10, 100, 1000} {
+		size := size
+		b.Run(fmt.Sprintf("zset/slots=%d", size), func(b *testing.B) {
+			accountID := time.Now().UnixNano()
+			key := accountSlotKey(accountID)
+
+			b.StopTimer()
+			members := make([]redis.Z, 0, size)
+			now := float64(time.Now().Unix())
+			for i := 0; i < size; i++ {
+				members = append(members, redis.Z{
+					Score:  now,
+					Member: fmt.Sprintf("req_%d", i),
+				})
+			}
+			if err := rdb.ZAdd(ctx, key, members...).Err(); err != nil {
+				b.Fatalf("初始化有序集合失败: %v", err)
+			}
+			if err := rdb.Expire(ctx, key, benchSlotTTL).Err(); err != nil {
+				b.Fatalf("设置有序集合 TTL 失败: %v", err)
+			}
+			b.StartTimer()
+
+			b.ReportAllocs()
+			for i := 0; i < b.N; i++ {
+				if _, err := cache.GetAccountConcurrency(ctx, accountID); err != nil {
+					b.Fatalf("获取并发数量失败: %v", err)
+				}
+			}
+
+			b.StopTimer()
+			if err := rdb.Del(ctx, key).Err(); err != nil {
+				b.Fatalf("清理有序集合失败: %v", err)
+			}
+		})
+
+		b.Run(fmt.Sprintf("scan/slots=%d", size), func(b *testing.B) {
+			accountID := time.Now().UnixNano()
+			pattern := fmt.Sprintf("%s%d:*", accountSlotKeyPrefix, accountID)
+			keys := make([]string, 0, size)
+
+			b.StopTimer()
+			pipe := rdb.Pipeline()
+			for i := 0; i < size; i++ {
+				key := fmt.Sprintf("%s%d:req_%d", accountSlotKeyPrefix, accountID, i)
+				keys = append(keys, key)
+				pipe.Set(ctx, key, "1", benchSlotTTL)
+			}
+			if _, err := pipe.Exec(ctx); err != nil {
+				b.Fatalf("初始化扫描键失败: %v", err)
+			}
+			b.StartTimer()
+
+			b.ReportAllocs()
+			for i := 0; i < b.N; i++ {
+				if _, err := scanSlotCount(ctx, rdb, pattern); err != nil {
+					b.Fatalf("SCAN 计数失败: %v", err)
+				}
+			}
+
+			b.StopTimer()
+			if err := rdb.Del(ctx, keys...).Err(); err != nil {
+				b.Fatalf("清理扫描键失败: %v", err)
+			}
+		})
+	}
+}
+
+func scanSlotCount(ctx context.Context, rdb *redis.Client, pattern string) (int, error) {
+	var cursor uint64
+	count := 0
+	for {
+		keys, nextCursor, err := rdb.Scan(ctx, cursor, pattern, 100).Result()
+		if err != nil {
+			return 0, err
+		}
+		count += len(keys)
+		if nextCursor == 0 {
+			break
+		}
+		cursor = nextCursor
+	}
+	return count, nil
+}
+
+func newBenchmarkRedisClient(b *testing.B) *redis.Client {
+	b.Helper()
+
+	redisURL := os.Getenv("TEST_REDIS_URL")
+	if redisURL == "" {
+		b.Skip("未设置 TEST_REDIS_URL，跳过 Redis 基准测试")
+	}
+
+	opt, err := redis.ParseURL(redisURL)
+	if err != nil {
+		b.Fatalf("解析 TEST_REDIS_URL 失败: %v", err)
+	}
+
+	client := redis.NewClient(opt)
+	ctx, cancel := context.WithTimeout(context.Background(), 3*time.Second)
+	defer cancel()
+
+	if err := client.Ping(ctx).Err(); err != nil {
+		b.Fatalf("Redis 连接失败: %v", err)
+	}
+
+	return client
+}

llm-gateway-competitors/sub2api-tar/backend/internal/repository/concurrency_cache_integration_test.go

@@ -0,0 +1,487 @@
+//go:build integration
+
+package repository
+
+import (
+	"errors"
+	"fmt"
+	"testing"
+	"time"
+
+	"github.com/Wei-Shaw/sub2api/internal/service"
+	"github.com/redis/go-redis/v9"
+	"github.com/stretchr/testify/require"
+	"github.com/stretchr/testify/suite"
+)
+
+// 测试用 TTL 配置（15 分钟，与默认值一致）
+const testSlotTTLMinutes = 15
+
+// 测试用 TTL Duration，用于 TTL 断言
+var testSlotTTL = time.Duration(testSlotTTLMinutes) * time.Minute
+
+type ConcurrencyCacheSuite struct {
+	IntegrationRedisSuite
+	cache service.ConcurrencyCache
+}
+
+func TestConcurrencyCacheSuite(t *testing.T) {
+	suite.Run(t, new(ConcurrencyCacheSuite))
+}
+
+func (s *ConcurrencyCacheSuite) SetupTest() {
+	s.IntegrationRedisSuite.SetupTest()
+	s.cache = NewConcurrencyCache(s.rdb, testSlotTTLMinutes, int(testSlotTTL.Seconds()))
+}
+
+func (s *ConcurrencyCacheSuite) TestAccountSlot_AcquireAndRelease() {
+	accountID := int64(10)
+	reqID1, reqID2, reqID3 := "req1", "req2", "req3"
+
+	ok, err := s.cache.AcquireAccountSlot(s.ctx, accountID, 2, reqID1)
+	require.NoError(s.T(), err, "AcquireAccountSlot 1")
+	require.True(s.T(), ok)
+
+	ok, err = s.cache.AcquireAccountSlot(s.ctx, accountID, 2, reqID2)
+	require.NoError(s.T(), err, "AcquireAccountSlot 2")
+	require.True(s.T(), ok)
+
+	ok, err = s.cache.AcquireAccountSlot(s.ctx, accountID, 2, reqID3)
+	require.NoError(s.T(), err, "AcquireAccountSlot 3")
+	require.False(s.T(), ok, "expected third acquire to fail")
+
+	cur, err := s.cache.GetAccountConcurrency(s.ctx, accountID)
+	require.NoError(s.T(), err, "GetAccountConcurrency")
+	require.Equal(s.T(), 2, cur, "concurrency mismatch")
+
+	require.NoError(s.T(), s.cache.ReleaseAccountSlot(s.ctx, accountID, reqID1), "ReleaseAccountSlot")
+
+	cur, err = s.cache.GetAccountConcurrency(s.ctx, accountID)
+	require.NoError(s.T(), err, "GetAccountConcurrency after release")
+	require.Equal(s.T(), 1, cur, "expected 1 after release")
+}
+
+func (s *ConcurrencyCacheSuite) TestAccountSlot_TTL() {
+	accountID := int64(11)
+	reqID := "req_ttl_test"
+	slotKey := fmt.Sprintf("%s%d", accountSlotKeyPrefix, accountID)
+
+	ok, err := s.cache.AcquireAccountSlot(s.ctx, accountID, 5, reqID)
+	require.NoError(s.T(), err, "AcquireAccountSlot")
+	require.True(s.T(), ok)
+
+	ttl, err := s.rdb.TTL(s.ctx, slotKey).Result()
+	require.NoError(s.T(), err, "TTL")
+	s.AssertTTLWithin(ttl, 1*time.Second, testSlotTTL)
+}
+
+func (s *ConcurrencyCacheSuite) TestAccountSlot_DuplicateReqID() {
+	accountID := int64(12)
+	reqID := "dup-req"
+
+	ok, err := s.cache.AcquireAccountSlot(s.ctx, accountID, 2, reqID)
+	require.NoError(s.T(), err)
+	require.True(s.T(), ok)
+
+	// Acquiring with same reqID should be idempotent
+	ok, err = s.cache.AcquireAccountSlot(s.ctx, accountID, 2, reqID)
+	require.NoError(s.T(), err)
+	require.True(s.T(), ok)
+
+	cur, err := s.cache.GetAccountConcurrency(s.ctx, accountID)
+	require.NoError(s.T(), err)
+	require.Equal(s.T(), 1, cur, "expected concurrency=1 (idempotent)")
+}
+
+func (s *ConcurrencyCacheSuite) TestAccountSlot_ReleaseIdempotent() {
+	accountID := int64(13)
+	reqID := "release-test"
+
+	ok, err := s.cache.AcquireAccountSlot(s.ctx, accountID, 1, reqID)
+	require.NoError(s.T(), err)
+	require.True(s.T(), ok)
+
+	require.NoError(s.T(), s.cache.ReleaseAccountSlot(s.ctx, accountID, reqID), "ReleaseAccountSlot")
+	// Releasing again should not error
+	require.NoError(s.T(), s.cache.ReleaseAccountSlot(s.ctx, accountID, reqID), "ReleaseAccountSlot again")
+	// Releasing non-existent should not error
+	require.NoError(s.T(), s.cache.ReleaseAccountSlot(s.ctx, accountID, "non-existent"), "ReleaseAccountSlot non-existent")
+
+	cur, err := s.cache.GetAccountConcurrency(s.ctx, accountID)
+	require.NoError(s.T(), err)
+	require.Equal(s.T(), 0, cur)
+}
+
+func (s *ConcurrencyCacheSuite) TestAccountSlot_MaxZero() {
+	accountID := int64(14)
+	reqID := "max-zero-test"
+
+	ok, err := s.cache.AcquireAccountSlot(s.ctx, accountID, 0, reqID)
+	require.NoError(s.T(), err)
+	require.False(s.T(), ok, "expected acquire to fail with max=0")
+}
+
+func (s *ConcurrencyCacheSuite) TestUserSlot_AcquireAndRelease() {
+	userID := int64(42)
+	reqID1, reqID2 := "req1", "req2"
+
+	ok, err := s.cache.AcquireUserSlot(s.ctx, userID, 1, reqID1)
+	require.NoError(s.T(), err, "AcquireUserSlot")
+	require.True(s.T(), ok)
+
+	ok, err = s.cache.AcquireUserSlot(s.ctx, userID, 1, reqID2)
+	require.NoError(s.T(), err, "AcquireUserSlot 2")
+	require.False(s.T(), ok, "expected second acquire to fail at max=1")
+
+	cur, err := s.cache.GetUserConcurrency(s.ctx, userID)
+	require.NoError(s.T(), err, "GetUserConcurrency")
+	require.Equal(s.T(), 1, cur, "expected concurrency=1")
+
+	require.NoError(s.T(), s.cache.ReleaseUserSlot(s.ctx, userID, reqID1), "ReleaseUserSlot")
+	// Releasing a non-existent slot should not error
+	require.NoError(s.T(), s.cache.ReleaseUserSlot(s.ctx, userID, "non-existent"), "ReleaseUserSlot non-existent")
+
+	cur, err = s.cache.GetUserConcurrency(s.ctx, userID)
+	require.NoError(s.T(), err, "GetUserConcurrency after release")
+	require.Equal(s.T(), 0, cur, "expected concurrency=0 after release")
+}
+
+func (s *ConcurrencyCacheSuite) TestUserSlot_TTL() {
+	userID := int64(200)
+	reqID := "req_ttl_test"
+	slotKey := fmt.Sprintf("%s%d", userSlotKeyPrefix, userID)
+
+	ok, err := s.cache.AcquireUserSlot(s.ctx, userID, 5, reqID)
+	require.NoError(s.T(), err, "AcquireUserSlot")
+	require.True(s.T(), ok)
+
+	ttl, err := s.rdb.TTL(s.ctx, slotKey).Result()
+	require.NoError(s.T(), err, "TTL")
+	s.AssertTTLWithin(ttl, 1*time.Second, testSlotTTL)
+}
+
+func (s *ConcurrencyCacheSuite) TestWaitQueue_IncrementAndDecrement() {
+	userID := int64(20)
+	waitKey := fmt.Sprintf("%s%d", waitQueueKeyPrefix, userID)
+
+	ok, err := s.cache.IncrementWaitCount(s.ctx, userID, 2)
+	require.NoError(s.T(), err, "IncrementWaitCount 1")
+	require.True(s.T(), ok)
+
+	ok, err = s.cache.IncrementWaitCount(s.ctx, userID, 2)
+	require.NoError(s.T(), err, "IncrementWaitCount 2")
+	require.True(s.T(), ok)
+
+	ok, err = s.cache.IncrementWaitCount(s.ctx, userID, 2)
+	require.NoError(s.T(), err, "IncrementWaitCount 3")
+	require.False(s.T(), ok, "expected wait increment over max to fail")
+
+	ttl, err := s.rdb.TTL(s.ctx, waitKey).Result()
+	require.NoError(s.T(), err, "TTL waitKey")
+	s.AssertTTLWithin(ttl, 1*time.Second, testSlotTTL)
+
+	require.NoError(s.T(), s.cache.DecrementWaitCount(s.ctx, userID), "DecrementWaitCount")
+
+	val, err := s.rdb.Get(s.ctx, waitKey).Int()
+	if !errors.Is(err, redis.Nil) {
+		require.NoError(s.T(), err, "Get waitKey")
+	}
+	require.Equal(s.T(), 1, val, "expected wait count 1")
+}
+
+func (s *ConcurrencyCacheSuite) TestWaitQueue_DecrementNoNegative() {
+	userID := int64(300)
+	waitKey := fmt.Sprintf("%s%d", waitQueueKeyPrefix, userID)
+
+	// Test decrement on non-existent key - should not error and should not create negative value
+	require.NoError(s.T(), s.cache.DecrementWaitCount(s.ctx, userID), "DecrementWaitCount on non-existent key")
+
+	// Verify no key was created or it's not negative
+	val, err := s.rdb.Get(s.ctx, waitKey).Int()
+	if !errors.Is(err, redis.Nil) {
+		require.NoError(s.T(), err, "Get waitKey")
+	}
+	require.GreaterOrEqual(s.T(), val, 0, "expected non-negative wait count after decrement on empty")
+
+	// Set count to 1, then decrement twice
+	ok, err := s.cache.IncrementWaitCount(s.ctx, userID, 5)
+	require.NoError(s.T(), err, "IncrementWaitCount")
+	require.True(s.T(), ok)
+
+	// Decrement once (1 -> 0)
+	require.NoError(s.T(), s.cache.DecrementWaitCount(s.ctx, userID), "DecrementWaitCount")
+
+	// Decrement again on 0 - should not go negative
+	require.NoError(s.T(), s.cache.DecrementWaitCount(s.ctx, userID), "DecrementWaitCount on zero")
+
+	// Verify count is 0, not negative
+	val, err = s.rdb.Get(s.ctx, waitKey).Int()
+	if !errors.Is(err, redis.Nil) {
+		require.NoError(s.T(), err, "Get waitKey after double decrement")
+	}
+	require.GreaterOrEqual(s.T(), val, 0, "expected non-negative wait count")
+}
+
+func (s *ConcurrencyCacheSuite) TestAccountWaitQueue_IncrementAndDecrement() {
+	accountID := int64(30)
+	waitKey := fmt.Sprintf("%s%d", accountWaitKeyPrefix, accountID)
+
+	ok, err := s.cache.IncrementAccountWaitCount(s.ctx, accountID, 2)
+	require.NoError(s.T(), err, "IncrementAccountWaitCount 1")
+	require.True(s.T(), ok)
+
+	ok, err = s.cache.IncrementAccountWaitCount(s.ctx, accountID, 2)
+	require.NoError(s.T(), err, "IncrementAccountWaitCount 2")
+	require.True(s.T(), ok)
+
+	ok, err = s.cache.IncrementAccountWaitCount(s.ctx, accountID, 2)
+	require.NoError(s.T(), err, "IncrementAccountWaitCount 3")
+	require.False(s.T(), ok, "expected account wait increment over max to fail")
+
+	ttl, err := s.rdb.TTL(s.ctx, waitKey).Result()
+	require.NoError(s.T(), err, "TTL account waitKey")
+	s.AssertTTLWithin(ttl, 1*time.Second, testSlotTTL)
+
+	require.NoError(s.T(), s.cache.DecrementAccountWaitCount(s.ctx, accountID), "DecrementAccountWaitCount")
+
+	val, err := s.rdb.Get(s.ctx, waitKey).Int()
+	if !errors.Is(err, redis.Nil) {
+		require.NoError(s.T(), err, "Get waitKey")
+	}
+	require.Equal(s.T(), 1, val, "expected account wait count 1")
+}
+
+func (s *ConcurrencyCacheSuite) TestCleanupStaleProcessSlots() {
+	accountID := int64(901)
+	userID := int64(902)
+	accountKey := fmt.Sprintf("%s%d", accountSlotKeyPrefix, accountID)
+	userKey := fmt.Sprintf("%s%d", userSlotKeyPrefix, userID)
+	userWaitKey := fmt.Sprintf("%s%d", waitQueueKeyPrefix, userID)
+	accountWaitKey := fmt.Sprintf("%s%d", accountWaitKeyPrefix, accountID)
+
+	now := time.Now().Unix()
+	require.NoError(s.T(), s.rdb.ZAdd(s.ctx, accountKey,
+		redis.Z{Score: float64(now), Member: "oldproc-1"},
+		redis.Z{Score: float64(now), Member: "keep-1"},
+	).Err())
+	require.NoError(s.T(), s.rdb.ZAdd(s.ctx, userKey,
+		redis.Z{Score: float64(now), Member: "oldproc-2"},
+		redis.Z{Score: float64(now), Member: "keep-2"},
+	).Err())
+	require.NoError(s.T(), s.rdb.Set(s.ctx, userWaitKey, 3, time.Minute).Err())
+	require.NoError(s.T(), s.rdb.Set(s.ctx, accountWaitKey, 2, time.Minute).Err())
+
+	require.NoError(s.T(), s.cache.CleanupStaleProcessSlots(s.ctx, "keep-"))
+
+	accountMembers, err := s.rdb.ZRange(s.ctx, accountKey, 0, -1).Result()
+	require.NoError(s.T(), err)
+	require.Equal(s.T(), []string{"keep-1"}, accountMembers)
+
+	userMembers, err := s.rdb.ZRange(s.ctx, userKey, 0, -1).Result()
+	require.NoError(s.T(), err)
+	require.Equal(s.T(), []string{"keep-2"}, userMembers)
+
+	_, err = s.rdb.Get(s.ctx, userWaitKey).Result()
+	require.True(s.T(), errors.Is(err, redis.Nil))
+
+	_, err = s.rdb.Get(s.ctx, accountWaitKey).Result()
+	require.True(s.T(), errors.Is(err, redis.Nil))
+}
+
+func (s *ConcurrencyCacheSuite) TestGetAccountConcurrency_Missing() {
+	// When no slots exist, GetAccountConcurrency should return 0
+	cur, err := s.cache.GetAccountConcurrency(s.ctx, 999)
+	require.NoError(s.T(), err)
+	require.Equal(s.T(), 0, cur)
+}
+
+func (s *ConcurrencyCacheSuite) TestGetUserConcurrency_Missing() {
+	// When no slots exist, GetUserConcurrency should return 0
+	cur, err := s.cache.GetUserConcurrency(s.ctx, 999)
+	require.NoError(s.T(), err)
+	require.Equal(s.T(), 0, cur)
+}
+
+func (s *ConcurrencyCacheSuite) TestGetAccountsLoadBatch() {
+	s.T().Skip("TODO: Fix this test - CurrentConcurrency returns 0 instead of expected value in CI")
+	// Setup: Create accounts with different load states
+	account1 := int64(100)
+	account2 := int64(101)
+	account3 := int64(102)
+
+	// Account 1: 2/3 slots used, 1 waiting
+	ok, err := s.cache.AcquireAccountSlot(s.ctx, account1, 3, "req1")
+	require.NoError(s.T(), err)
+	require.True(s.T(), ok)
+	ok, err = s.cache.AcquireAccountSlot(s.ctx, account1, 3, "req2")
+	require.NoError(s.T(), err)
+	require.True(s.T(), ok)
+	ok, err = s.cache.IncrementAccountWaitCount(s.ctx, account1, 5)
+	require.NoError(s.T(), err)
+	require.True(s.T(), ok)
+
+	// Account 2: 1/2 slots used, 0 waiting
+	ok, err = s.cache.AcquireAccountSlot(s.ctx, account2, 2, "req3")
+	require.NoError(s.T(), err)
+	require.True(s.T(), ok)
+
+	// Account 3: 0/1 slots used, 0 waiting (idle)
+
+	// Query batch load
+	accounts := []service.AccountWithConcurrency{
+		{ID: account1, MaxConcurrency: 3},
+		{ID: account2, MaxConcurrency: 2},
+		{ID: account3, MaxConcurrency: 1},
+	}
+
+	loadMap, err := s.cache.GetAccountsLoadBatch(s.ctx, accounts)
+	require.NoError(s.T(), err)
+	require.Len(s.T(), loadMap, 3)
+
+	// Verify account1: (2 + 1) / 3 = 100%
+	load1 := loadMap[account1]
+	require.NotNil(s.T(), load1)
+	require.Equal(s.T(), account1, load1.AccountID)
+	require.Equal(s.T(), 2, load1.CurrentConcurrency)
+	require.Equal(s.T(), 1, load1.WaitingCount)
+	require.Equal(s.T(), 100, load1.LoadRate)
+
+	// Verify account2: (1 + 0) / 2 = 50%
+	load2 := loadMap[account2]
+	require.NotNil(s.T(), load2)
+	require.Equal(s.T(), account2, load2.AccountID)
+	require.Equal(s.T(), 1, load2.CurrentConcurrency)
+	require.Equal(s.T(), 0, load2.WaitingCount)
+	require.Equal(s.T(), 50, load2.LoadRate)
+
+	// Verify account3: (0 + 0) / 1 = 0%
+	load3 := loadMap[account3]
+	require.NotNil(s.T(), load3)
+	require.Equal(s.T(), account3, load3.AccountID)
+	require.Equal(s.T(), 0, load3.CurrentConcurrency)
+	require.Equal(s.T(), 0, load3.WaitingCount)
+	require.Equal(s.T(), 0, load3.LoadRate)
+}
+
+func (s *ConcurrencyCacheSuite) TestGetAccountsLoadBatch_Empty() {
+	// Test with empty account list
+	loadMap, err := s.cache.GetAccountsLoadBatch(s.ctx, []service.AccountWithConcurrency{})
+	require.NoError(s.T(), err)
+	require.Empty(s.T(), loadMap)
+}
+
+func (s *ConcurrencyCacheSuite) TestCleanupExpiredAccountSlots() {
+	accountID := int64(200)
+	slotKey := fmt.Sprintf("%s%d", accountSlotKeyPrefix, accountID)
+
+	// Acquire 3 slots
+	ok, err := s.cache.AcquireAccountSlot(s.ctx, accountID, 5, "req1")
+	require.NoError(s.T(), err)
+	require.True(s.T(), ok)
+	ok, err = s.cache.AcquireAccountSlot(s.ctx, accountID, 5, "req2")
+	require.NoError(s.T(), err)
+	require.True(s.T(), ok)
+	ok, err = s.cache.AcquireAccountSlot(s.ctx, accountID, 5, "req3")
+	require.NoError(s.T(), err)
+	require.True(s.T(), ok)
+
+	// Verify 3 slots exist
+	cur, err := s.cache.GetAccountConcurrency(s.ctx, accountID)
+	require.NoError(s.T(), err)
+	require.Equal(s.T(), 3, cur)
+
+	// Manually set old timestamps for req1 and req2 (simulate expired slots)
+	now := time.Now().Unix()
+	expiredTime := now - int64(testSlotTTL.Seconds()) - 10 // 10 seconds past TTL
+	err = s.rdb.ZAdd(s.ctx, slotKey, redis.Z{Score: float64(expiredTime), Member: "req1"}).Err()
+	require.NoError(s.T(), err)
+	err = s.rdb.ZAdd(s.ctx, slotKey, redis.Z{Score: float64(expiredTime), Member: "req2"}).Err()
+	require.NoError(s.T(), err)
+
+	// Run cleanup
+	err = s.cache.CleanupExpiredAccountSlots(s.ctx, accountID)
+	require.NoError(s.T(), err)
+
+	// Verify only 1 slot remains (req3)
+	cur, err = s.cache.GetAccountConcurrency(s.ctx, accountID)
+	require.NoError(s.T(), err)
+	require.Equal(s.T(), 1, cur)
+
+	// Verify req3 still exists
+	members, err := s.rdb.ZRange(s.ctx, slotKey, 0, -1).Result()
+	require.NoError(s.T(), err)
+	require.Len(s.T(), members, 1)
+	require.Equal(s.T(), "req3", members[0])
+}
+
+func (s *ConcurrencyCacheSuite) TestCleanupExpiredAccountSlots_NoExpired() {
+	accountID := int64(201)
+
+	// Acquire 2 fresh slots
+	ok, err := s.cache.AcquireAccountSlot(s.ctx, accountID, 5, "req1")
+	require.NoError(s.T(), err)
+	require.True(s.T(), ok)
+	ok, err = s.cache.AcquireAccountSlot(s.ctx, accountID, 5, "req2")
+	require.NoError(s.T(), err)
+	require.True(s.T(), ok)
+
+	// Run cleanup (should not remove anything)
+	err = s.cache.CleanupExpiredAccountSlots(s.ctx, accountID)
+	require.NoError(s.T(), err)
+
+	// Verify both slots still exist
+	cur, err := s.cache.GetAccountConcurrency(s.ctx, accountID)
+	require.NoError(s.T(), err)
+	require.Equal(s.T(), 2, cur)
+}
+
+func (s *ConcurrencyCacheSuite) TestCleanupStaleProcessSlots_RemovesOldPrefixesAndWaitCounters() {
+	accountID := int64(901)
+	userID := int64(902)
+	accountSlotKey := fmt.Sprintf("%s%d", accountSlotKeyPrefix, accountID)
+	userSlotKey := fmt.Sprintf("%s%d", userSlotKeyPrefix, userID)
+	userWaitKey := fmt.Sprintf("%s%d", waitQueueKeyPrefix, userID)
+	accountWaitKey := fmt.Sprintf("%s%d", accountWaitKeyPrefix, accountID)
+
+	now := float64(time.Now().Unix())
+	require.NoError(s.T(), s.rdb.ZAdd(s.ctx, accountSlotKey,
+		redis.Z{Score: now, Member: "oldproc-1"},
+		redis.Z{Score: now, Member: "activeproc-1"},
+	).Err())
+	require.NoError(s.T(), s.rdb.Expire(s.ctx, accountSlotKey, testSlotTTL).Err())
+	require.NoError(s.T(), s.rdb.ZAdd(s.ctx, userSlotKey,
+		redis.Z{Score: now, Member: "oldproc-2"},
+		redis.Z{Score: now, Member: "activeproc-2"},
+	).Err())
+	require.NoError(s.T(), s.rdb.Expire(s.ctx, userSlotKey, testSlotTTL).Err())
+	require.NoError(s.T(), s.rdb.Set(s.ctx, userWaitKey, 3, testSlotTTL).Err())
+	require.NoError(s.T(), s.rdb.Set(s.ctx, accountWaitKey, 2, testSlotTTL).Err())
+
+	require.NoError(s.T(), s.cache.CleanupStaleProcessSlots(s.ctx, "activeproc-"))
+
+	accountMembers, err := s.rdb.ZRange(s.ctx, accountSlotKey, 0, -1).Result()
+	require.NoError(s.T(), err)
+	require.Equal(s.T(), []string{"activeproc-1"}, accountMembers)
+
+	userMembers, err := s.rdb.ZRange(s.ctx, userSlotKey, 0, -1).Result()
+	require.NoError(s.T(), err)
+	require.Equal(s.T(), []string{"activeproc-2"}, userMembers)
+
+	_, err = s.rdb.Get(s.ctx, userWaitKey).Result()
+	require.ErrorIs(s.T(), err, redis.Nil)
+	_, err = s.rdb.Get(s.ctx, accountWaitKey).Result()
+	require.ErrorIs(s.T(), err, redis.Nil)
+}
+
+func (s *ConcurrencyCacheSuite) TestCleanupStaleProcessSlots_DeletesEmptySlotKeys() {
+	accountID := int64(903)
+	accountSlotKey := fmt.Sprintf("%s%d", accountSlotKeyPrefix, accountID)
+	require.NoError(s.T(), s.rdb.ZAdd(s.ctx, accountSlotKey, redis.Z{Score: float64(time.Now().Unix()), Member: "oldproc-1"}).Err())
+	require.NoError(s.T(), s.rdb.Expire(s.ctx, accountSlotKey, testSlotTTL).Err())
+
+	require.NoError(s.T(), s.cache.CleanupStaleProcessSlots(s.ctx, "activeproc-"))
+
+	exists, err := s.rdb.Exists(s.ctx, accountSlotKey).Result()
+	require.NoError(s.T(), err)
+	require.EqualValues(s.T(), 0, exists)
+}

llm-gateway-competitors/sub2api-tar/backend/internal/repository/dashboard_aggregation_repo.go

@@ -0,0 +1,533 @@
+package repository
+
+import (
+	"context"
+	"database/sql"
+	"fmt"
+	"log"
+	"strings"
+	"time"
+
+	"github.com/Wei-Shaw/sub2api/internal/pkg/timezone"
+	"github.com/Wei-Shaw/sub2api/internal/service"
+	"github.com/lib/pq"
+)
+
+type dashboardAggregationRepository struct {
+	sql sqlExecutor
+}
+
+const usageLogsCleanupBatchSize = 10000
+const usageBillingDedupCleanupBatchSize = 10000
+
+// NewDashboardAggregationRepository 创建仪表盘预聚合仓储。
+func NewDashboardAggregationRepository(sqlDB *sql.DB) service.DashboardAggregationRepository {
+	if sqlDB == nil {
+		return nil
+	}
+	if !isPostgresDriver(sqlDB) {
+		log.Printf("[DashboardAggregation] 检测到非 PostgreSQL 驱动，已自动禁用预聚合")
+		return nil
+	}
+	return newDashboardAggregationRepositoryWithSQL(sqlDB)
+}
+
+func newDashboardAggregationRepositoryWithSQL(sqlq sqlExecutor) *dashboardAggregationRepository {
+	return &dashboardAggregationRepository{sql: sqlq}
+}
+
+func isPostgresDriver(db *sql.DB) bool {
+	if db == nil {
+		return false
+	}
+	_, ok := db.Driver().(*pq.Driver)
+	return ok
+}
+
+func (r *dashboardAggregationRepository) AggregateRange(ctx context.Context, start, end time.Time) error {
+	if r == nil || r.sql == nil {
+		return nil
+	}
+	loc := timezone.Location()
+	startLocal := start.In(loc)
+	endLocal := end.In(loc)
+	if !endLocal.After(startLocal) {
+		return nil
+	}
+
+	hourStart := startLocal.Truncate(time.Hour)
+	hourEnd := endLocal.Truncate(time.Hour)
+	if endLocal.After(hourEnd) {
+		hourEnd = hourEnd.Add(time.Hour)
+	}
+
+	dayStart := truncateToDay(startLocal)
+	dayEnd := truncateToDay(endLocal)
+	if endLocal.After(dayEnd) {
+		dayEnd = dayEnd.Add(24 * time.Hour)
+	}
+
+	if db, ok := r.sql.(*sql.DB); ok {
+		tx, err := db.BeginTx(ctx, nil)
+		if err != nil {
+			return err
+		}
+		txRepo := newDashboardAggregationRepositoryWithSQL(tx)
+		if err := txRepo.aggregateRangeInTx(ctx, hourStart, hourEnd, dayStart, dayEnd); err != nil {
+			_ = tx.Rollback()
+			return err
+		}
+		return tx.Commit()
+	}
+	return r.aggregateRangeInTx(ctx, hourStart, hourEnd, dayStart, dayEnd)
+}
+
+func (r *dashboardAggregationRepository) aggregateRangeInTx(ctx context.Context, hourStart, hourEnd, dayStart, dayEnd time.Time) error {
+	// 以桶边界聚合，允许覆盖 end 所在桶的剩余区间。
+	if err := r.insertHourlyActiveUsers(ctx, hourStart, hourEnd); err != nil {
+		return err
+	}
+	if err := r.insertDailyActiveUsers(ctx, hourStart, hourEnd); err != nil {
+		return err
+	}
+	if err := r.upsertHourlyAggregates(ctx, hourStart, hourEnd); err != nil {
+		return err
+	}
+	if err := r.upsertDailyAggregates(ctx, dayStart, dayEnd); err != nil {
+		return err
+	}
+	return nil
+}
+
+func (r *dashboardAggregationRepository) RecomputeRange(ctx context.Context, start, end time.Time) error {
+	if r == nil || r.sql == nil {
+		return nil
+	}
+	loc := timezone.Location()
+	startLocal := start.In(loc)
+	endLocal := end.In(loc)
+	if !endLocal.After(startLocal) {
+		return nil
+	}
+
+	hourStart := startLocal.Truncate(time.Hour)
+	hourEnd := endLocal.Truncate(time.Hour)
+	if endLocal.After(hourEnd) {
+		hourEnd = hourEnd.Add(time.Hour)
+	}
+
+	dayStart := truncateToDay(startLocal)
+	dayEnd := truncateToDay(endLocal)
+	if endLocal.After(dayEnd) {
+		dayEnd = dayEnd.Add(24 * time.Hour)
+	}
+
+	// 尽量使用事务保证范围内的一致性（允许在非 *sql.DB 的情况下退化为非事务执行）。
+	if db, ok := r.sql.(*sql.DB); ok {
+		tx, err := db.BeginTx(ctx, nil)
+		if err != nil {
+			return err
+		}
+		txRepo := newDashboardAggregationRepositoryWithSQL(tx)
+		if err := txRepo.recomputeRangeInTx(ctx, hourStart, hourEnd, dayStart, dayEnd); err != nil {
+			_ = tx.Rollback()
+			return err
+		}
+		return tx.Commit()
+	}
+	return r.recomputeRangeInTx(ctx, hourStart, hourEnd, dayStart, dayEnd)
+}
+
+func (r *dashboardAggregationRepository) recomputeRangeInTx(ctx context.Context, hourStart, hourEnd, dayStart, dayEnd time.Time) error {
+	// 先清空范围内桶，再重建（避免仅增量插入导致活跃用户等指标无法回退）。
+	if _, err := r.sql.ExecContext(ctx, "DELETE FROM usage_dashboard_hourly WHERE bucket_start >= $1 AND bucket_start < $2", hourStart, hourEnd); err != nil {
+		return err
+	}
+	if _, err := r.sql.ExecContext(ctx, "DELETE FROM usage_dashboard_hourly_users WHERE bucket_start >= $1 AND bucket_start < $2", hourStart, hourEnd); err != nil {
+		return err
+	}
+	if _, err := r.sql.ExecContext(ctx, "DELETE FROM usage_dashboard_daily WHERE bucket_date >= $1::date AND bucket_date < $2::date", dayStart, dayEnd); err != nil {
+		return err
+	}
+	if _, err := r.sql.ExecContext(ctx, "DELETE FROM usage_dashboard_daily_users WHERE bucket_date >= $1::date AND bucket_date < $2::date", dayStart, dayEnd); err != nil {
+		return err
+	}
+
+	if err := r.insertHourlyActiveUsers(ctx, hourStart, hourEnd); err != nil {
+		return err
+	}
+	if err := r.insertDailyActiveUsers(ctx, hourStart, hourEnd); err != nil {
+		return err
+	}
+	if err := r.upsertHourlyAggregates(ctx, hourStart, hourEnd); err != nil {
+		return err
+	}
+	if err := r.upsertDailyAggregates(ctx, dayStart, dayEnd); err != nil {
+		return err
+	}
+	return nil
+}
+
+func (r *dashboardAggregationRepository) GetAggregationWatermark(ctx context.Context) (time.Time, error) {
+	var ts time.Time
+	query := "SELECT last_aggregated_at FROM usage_dashboard_aggregation_watermark WHERE id = 1"
+	if err := scanSingleRow(ctx, r.sql, query, nil, &ts); err != nil {
+		if err == sql.ErrNoRows {
+			return time.Unix(0, 0).UTC(), nil
+		}
+		return time.Time{}, err
+	}
+	return ts.UTC(), nil
+}
+
+func (r *dashboardAggregationRepository) UpdateAggregationWatermark(ctx context.Context, aggregatedAt time.Time) error {
+	query := `
+		INSERT INTO usage_dashboard_aggregation_watermark (id, last_aggregated_at, updated_at)
+		VALUES (1, $1, NOW())
+		ON CONFLICT (id)
+		DO UPDATE SET last_aggregated_at = EXCLUDED.last_aggregated_at, updated_at = EXCLUDED.updated_at
+	`
+	_, err := r.sql.ExecContext(ctx, query, aggregatedAt.UTC())
+	return err
+}
+
+func (r *dashboardAggregationRepository) CleanupAggregates(ctx context.Context, hourlyCutoff, dailyCutoff time.Time) error {
+	hourlyCutoffUTC := hourlyCutoff.UTC()
+	dailyCutoffUTC := dailyCutoff.UTC()
+	if _, err := r.sql.ExecContext(ctx, "DELETE FROM usage_dashboard_hourly WHERE bucket_start < $1", hourlyCutoffUTC); err != nil {
+		return err
+	}
+	if _, err := r.sql.ExecContext(ctx, "DELETE FROM usage_dashboard_hourly_users WHERE bucket_start < $1", hourlyCutoffUTC); err != nil {
+		return err
+	}
+	if _, err := r.sql.ExecContext(ctx, "DELETE FROM usage_dashboard_daily WHERE bucket_date < $1::date", dailyCutoffUTC); err != nil {
+		return err
+	}
+	if _, err := r.sql.ExecContext(ctx, "DELETE FROM usage_dashboard_daily_users WHERE bucket_date < $1::date", dailyCutoffUTC); err != nil {
+		return err
+	}
+	return nil
+}
+
+func (r *dashboardAggregationRepository) CleanupUsageLogs(ctx context.Context, cutoff time.Time) error {
+	isPartitioned, err := r.isUsageLogsPartitioned(ctx)
+	if err != nil {
+		return err
+	}
+	if isPartitioned {
+		return r.dropUsageLogsPartitions(ctx, cutoff)
+	}
+	for {
+		res, err := r.sql.ExecContext(ctx, `
+			WITH victims AS (
+				SELECT ctid
+				FROM usage_logs
+				WHERE created_at < $1
+				LIMIT $2
+			)
+			DELETE FROM usage_logs
+			WHERE ctid IN (SELECT ctid FROM victims)
+		`, cutoff.UTC(), usageLogsCleanupBatchSize)
+		if err != nil {
+			return err
+		}
+		affected, err := res.RowsAffected()
+		if err != nil {
+			return err
+		}
+		if affected < usageLogsCleanupBatchSize {
+			return nil
+		}
+	}
+}
+
+func (r *dashboardAggregationRepository) CleanupUsageBillingDedup(ctx context.Context, cutoff time.Time) error {
+	for {
+		res, err := r.sql.ExecContext(ctx, `
+			WITH victims AS (
+				SELECT ctid, request_id, api_key_id, request_fingerprint, created_at
+				FROM usage_billing_dedup
+				WHERE created_at < $1
+				LIMIT $2
+			), archived AS (
+				INSERT INTO usage_billing_dedup_archive (request_id, api_key_id, request_fingerprint, created_at)
+				SELECT request_id, api_key_id, request_fingerprint, created_at
+				FROM victims
+				ON CONFLICT (request_id, api_key_id) DO NOTHING
+			)
+			DELETE FROM usage_billing_dedup
+			WHERE ctid IN (SELECT ctid FROM victims)
+		`, cutoff.UTC(), usageBillingDedupCleanupBatchSize)
+		if err != nil {
+			return err
+		}
+		affected, err := res.RowsAffected()
+		if err != nil {
+			return err
+		}
+		if affected < usageBillingDedupCleanupBatchSize {
+			return nil
+		}
+	}
+}
+
+func (r *dashboardAggregationRepository) EnsureUsageLogsPartitions(ctx context.Context, now time.Time) error {
+	isPartitioned, err := r.isUsageLogsPartitioned(ctx)
+	if err != nil || !isPartitioned {
+		return err
+	}
+	monthStart := truncateToMonthUTC(now)
+	prevMonth := monthStart.AddDate(0, -1, 0)
+	nextMonth := monthStart.AddDate(0, 1, 0)
+
+	for _, m := range []time.Time{prevMonth, monthStart, nextMonth} {
+		if err := r.createUsageLogsPartition(ctx, m); err != nil {
+			return err
+		}
+	}
+	return nil
+}
+
+func (r *dashboardAggregationRepository) insertHourlyActiveUsers(ctx context.Context, start, end time.Time) error {
+	tzName := timezone.Name()
+	query := `
+		INSERT INTO usage_dashboard_hourly_users (bucket_start, user_id)
+		SELECT DISTINCT
+			date_trunc('hour', created_at AT TIME ZONE $3) AT TIME ZONE $3 AS bucket_start,
+			user_id
+		FROM usage_logs
+		WHERE created_at >= $1 AND created_at < $2
+		ON CONFLICT DO NOTHING
+	`
+	_, err := r.sql.ExecContext(ctx, query, start, end, tzName)
+	return err
+}
+
+func (r *dashboardAggregationRepository) insertDailyActiveUsers(ctx context.Context, start, end time.Time) error {
+	tzName := timezone.Name()
+	query := `
+		INSERT INTO usage_dashboard_daily_users (bucket_date, user_id)
+		SELECT DISTINCT
+			(bucket_start AT TIME ZONE $3)::date AS bucket_date,
+			user_id
+		FROM usage_dashboard_hourly_users
+		WHERE bucket_start >= $1 AND bucket_start < $2
+		ON CONFLICT DO NOTHING
+	`
+	_, err := r.sql.ExecContext(ctx, query, start, end, tzName)
+	return err
+}
+
+func (r *dashboardAggregationRepository) upsertHourlyAggregates(ctx context.Context, start, end time.Time) error {
+	tzName := timezone.Name()
+	query := `
+		WITH hourly AS (
+			SELECT
+				date_trunc('hour', created_at AT TIME ZONE $3) AT TIME ZONE $3 AS bucket_start,
+				COUNT(*) AS total_requests,
+				COALESCE(SUM(input_tokens), 0) AS input_tokens,
+				COALESCE(SUM(output_tokens), 0) AS output_tokens,
+				COALESCE(SUM(cache_creation_tokens), 0) AS cache_creation_tokens,
+				COALESCE(SUM(cache_read_tokens), 0) AS cache_read_tokens,
+				COALESCE(SUM(total_cost), 0) AS total_cost,
+				COALESCE(SUM(actual_cost), 0) AS actual_cost,
+				COALESCE(SUM(COALESCE(duration_ms, 0)), 0) AS total_duration_ms
+			FROM usage_logs
+			WHERE created_at >= $1 AND created_at < $2
+			GROUP BY 1
+		),
+		user_counts AS (
+			SELECT bucket_start, COUNT(*) AS active_users
+			FROM usage_dashboard_hourly_users
+			WHERE bucket_start >= $1 AND bucket_start < $2
+			GROUP BY bucket_start
+		)
+		INSERT INTO usage_dashboard_hourly (
+			bucket_start,
+			total_requests,
+			input_tokens,
+			output_tokens,
+			cache_creation_tokens,
+			cache_read_tokens,
+			total_cost,
+			actual_cost,
+			total_duration_ms,
+			active_users,
+			computed_at
+		)
+		SELECT
+			hourly.bucket_start,
+			hourly.total_requests,
+			hourly.input_tokens,
+			hourly.output_tokens,
+			hourly.cache_creation_tokens,
+			hourly.cache_read_tokens,
+			hourly.total_cost,
+			hourly.actual_cost,
+			hourly.total_duration_ms,
+			COALESCE(user_counts.active_users, 0) AS active_users,
+			NOW()
+		FROM hourly
+		LEFT JOIN user_counts ON user_counts.bucket_start = hourly.bucket_start
+		ON CONFLICT (bucket_start)
+		DO UPDATE SET
+			total_requests = EXCLUDED.total_requests,
+			input_tokens = EXCLUDED.input_tokens,
+			output_tokens = EXCLUDED.output_tokens,
+			cache_creation_tokens = EXCLUDED.cache_creation_tokens,
+			cache_read_tokens = EXCLUDED.cache_read_tokens,
+			total_cost = EXCLUDED.total_cost,
+			actual_cost = EXCLUDED.actual_cost,
+			total_duration_ms = EXCLUDED.total_duration_ms,
+			active_users = EXCLUDED.active_users,
+			computed_at = EXCLUDED.computed_at
+	`
+	_, err := r.sql.ExecContext(ctx, query, start, end, tzName)
+	return err
+}
+
+func (r *dashboardAggregationRepository) upsertDailyAggregates(ctx context.Context, start, end time.Time) error {
+	tzName := timezone.Name()
+	query := `
+		WITH daily AS (
+			SELECT
+				(bucket_start AT TIME ZONE $5)::date AS bucket_date,
+				COALESCE(SUM(total_requests), 0) AS total_requests,
+				COALESCE(SUM(input_tokens), 0) AS input_tokens,
+				COALESCE(SUM(output_tokens), 0) AS output_tokens,
+				COALESCE(SUM(cache_creation_tokens), 0) AS cache_creation_tokens,
+				COALESCE(SUM(cache_read_tokens), 0) AS cache_read_tokens,
+				COALESCE(SUM(total_cost), 0) AS total_cost,
+				COALESCE(SUM(actual_cost), 0) AS actual_cost,
+				COALESCE(SUM(total_duration_ms), 0) AS total_duration_ms
+			FROM usage_dashboard_hourly
+			WHERE bucket_start >= $1 AND bucket_start < $2
+			GROUP BY (bucket_start AT TIME ZONE $5)::date
+		),
+		user_counts AS (
+			SELECT bucket_date, COUNT(*) AS active_users
+			FROM usage_dashboard_daily_users
+			WHERE bucket_date >= $3::date AND bucket_date < $4::date
+			GROUP BY bucket_date
+		)
+		INSERT INTO usage_dashboard_daily (
+			bucket_date,
+			total_requests,
+			input_tokens,
+			output_tokens,
+			cache_creation_tokens,
+			cache_read_tokens,
+			total_cost,
+			actual_cost,
+			total_duration_ms,
+			active_users,
+			computed_at
+		)
+		SELECT
+			daily.bucket_date,
+			daily.total_requests,
+			daily.input_tokens,
+			daily.output_tokens,
+			daily.cache_creation_tokens,
+			daily.cache_read_tokens,
+			daily.total_cost,
+			daily.actual_cost,
+			daily.total_duration_ms,
+			COALESCE(user_counts.active_users, 0) AS active_users,
+			NOW()
+		FROM daily
+		LEFT JOIN user_counts ON user_counts.bucket_date = daily.bucket_date
+		ON CONFLICT (bucket_date)
+		DO UPDATE SET
+			total_requests = EXCLUDED.total_requests,
+			input_tokens = EXCLUDED.input_tokens,
+			output_tokens = EXCLUDED.output_tokens,
+			cache_creation_tokens = EXCLUDED.cache_creation_tokens,
+			cache_read_tokens = EXCLUDED.cache_read_tokens,
+			total_cost = EXCLUDED.total_cost,
+			actual_cost = EXCLUDED.actual_cost,
+			total_duration_ms = EXCLUDED.total_duration_ms,
+			active_users = EXCLUDED.active_users,
+			computed_at = EXCLUDED.computed_at
+	`
+	_, err := r.sql.ExecContext(ctx, query, start, end, start, end, tzName)
+	return err
+}
+
+func (r *dashboardAggregationRepository) isUsageLogsPartitioned(ctx context.Context) (bool, error) {
+	query := `
+		SELECT EXISTS(
+			SELECT 1
+			FROM pg_partitioned_table pt
+			JOIN pg_class c ON c.oid = pt.partrelid
+			WHERE c.relname = 'usage_logs'
+		)
+	`
+	var partitioned bool
+	if err := scanSingleRow(ctx, r.sql, query, nil, &partitioned); err != nil {
+		return false, err
+	}
+	return partitioned, nil
+}
+
+func (r *dashboardAggregationRepository) dropUsageLogsPartitions(ctx context.Context, cutoff time.Time) error {
+	rows, err := r.sql.QueryContext(ctx, `
+		SELECT c.relname
+		FROM pg_inherits
+		JOIN pg_class c ON c.oid = pg_inherits.inhrelid
+		JOIN pg_class p ON p.oid = pg_inherits.inhparent
+		WHERE p.relname = 'usage_logs'
+	`)
+	if err != nil {
+		return err
+	}
+	defer func() {
+		_ = rows.Close()
+	}()
+
+	cutoffMonth := truncateToMonthUTC(cutoff)
+	for rows.Next() {
+		var name string
+		if err := rows.Scan(&name); err != nil {
+			return err
+		}
+		if !strings.HasPrefix(name, "usage_logs_") {
+			continue
+		}
+		suffix := strings.TrimPrefix(name, "usage_logs_")
+		month, err := time.Parse("200601", suffix)
+		if err != nil {
+			continue
+		}
+		month = month.UTC()
+		if month.Before(cutoffMonth) {
+			if _, err := r.sql.ExecContext(ctx, fmt.Sprintf("DROP TABLE IF EXISTS %s", pq.QuoteIdentifier(name))); err != nil {
+				return err
+			}
+		}
+	}
+	return rows.Err()
+}
+
+func (r *dashboardAggregationRepository) createUsageLogsPartition(ctx context.Context, month time.Time) error {
+	monthStart := truncateToMonthUTC(month)
+	nextMonth := monthStart.AddDate(0, 1, 0)
+	name := fmt.Sprintf("usage_logs_%s", monthStart.Format("200601"))
+	query := fmt.Sprintf(
+		"CREATE TABLE IF NOT EXISTS %s PARTITION OF usage_logs FOR VALUES FROM (%s) TO (%s)",
+		pq.QuoteIdentifier(name),
+		pq.QuoteLiteral(monthStart.Format("2006-01-02")),
+		pq.QuoteLiteral(nextMonth.Format("2006-01-02")),
+	)
+	_, err := r.sql.ExecContext(ctx, query)
+	return err
+}
+
+func truncateToDay(t time.Time) time.Time {
+	return timezone.StartOfDay(t)
+}
+
+func truncateToMonthUTC(t time.Time) time.Time {
+	t = t.UTC()
+	return time.Date(t.Year(), t.Month(), 1, 0, 0, 0, 0, time.UTC)
+}

llm-gateway-competitors/sub2api-tar/backend/internal/repository/dashboard_cache.go

@@ -0,0 +1,58 @@
+package repository
+
+import (
+	"context"
+	"strings"
+	"time"
+
+	"github.com/Wei-Shaw/sub2api/internal/config"
+	"github.com/Wei-Shaw/sub2api/internal/service"
+	"github.com/redis/go-redis/v9"
+)
+
+const dashboardStatsCacheKey = "dashboard:stats:v1"
+
+type dashboardCache struct {
+	rdb       *redis.Client
+	keyPrefix string
+}
+
+func NewDashboardCache(rdb *redis.Client, cfg *config.Config) service.DashboardStatsCache {
+	prefix := "sub2api:"
+	if cfg != nil {
+		prefix = strings.TrimSpace(cfg.Dashboard.KeyPrefix)
+	}
+	if prefix != "" && !strings.HasSuffix(prefix, ":") {
+		prefix += ":"
+	}
+	return &dashboardCache{
+		rdb:       rdb,
+		keyPrefix: prefix,
+	}
+}
+
+func (c *dashboardCache) GetDashboardStats(ctx context.Context) (string, error) {
+	val, err := c.rdb.Get(ctx, c.buildKey()).Result()
+	if err != nil {
+		if err == redis.Nil {
+			return "", service.ErrDashboardStatsCacheMiss
+		}
+		return "", err
+	}
+	return val, nil
+}
+
+func (c *dashboardCache) SetDashboardStats(ctx context.Context, data string, ttl time.Duration) error {
+	return c.rdb.Set(ctx, c.buildKey(), data, ttl).Err()
+}
+
+func (c *dashboardCache) buildKey() string {
+	if c.keyPrefix == "" {
+		return dashboardStatsCacheKey
+	}
+	return c.keyPrefix + dashboardStatsCacheKey
+}
+
+func (c *dashboardCache) DeleteDashboardStats(ctx context.Context) error {
+	return c.rdb.Del(ctx, c.buildKey()).Err()
+}

llm-gateway-competitors/sub2api-tar/backend/internal/repository/dashboard_cache_test.go

@@ -0,0 +1,28 @@
+package repository
+
+import (
+	"testing"
+
+	"github.com/Wei-Shaw/sub2api/internal/config"
+	"github.com/stretchr/testify/require"
+)
+
+func TestNewDashboardCacheKeyPrefix(t *testing.T) {
+	cache := NewDashboardCache(nil, &config.Config{
+		Dashboard: config.DashboardCacheConfig{
+			KeyPrefix: "prod",
+		},
+	})
+	impl, ok := cache.(*dashboardCache)
+	require.True(t, ok)
+	require.Equal(t, "prod:", impl.keyPrefix)
+
+	cache = NewDashboardCache(nil, &config.Config{
+		Dashboard: config.DashboardCacheConfig{
+			KeyPrefix: "staging:",
+		},
+	})
+	impl, ok = cache.(*dashboardCache)
+	require.True(t, ok)
+	require.Equal(t, "staging:", impl.keyPrefix)
+}

llm-gateway-competitors/sub2api-tar/backend/internal/repository/db_pool.go

@@ -0,0 +1,32 @@
+package repository
+
+import (
+	"database/sql"
+	"time"
+
+	"github.com/Wei-Shaw/sub2api/internal/config"
+)
+
+type dbPoolSettings struct {
+	MaxOpenConns    int
+	MaxIdleConns    int
+	ConnMaxLifetime time.Duration
+	ConnMaxIdleTime time.Duration
+}
+
+func buildDBPoolSettings(cfg *config.Config) dbPoolSettings {
+	return dbPoolSettings{
+		MaxOpenConns:    cfg.Database.MaxOpenConns,
+		MaxIdleConns:    cfg.Database.MaxIdleConns,
+		ConnMaxLifetime: time.Duration(cfg.Database.ConnMaxLifetimeMinutes) * time.Minute,
+		ConnMaxIdleTime: time.Duration(cfg.Database.ConnMaxIdleTimeMinutes) * time.Minute,
+	}
+}
+
+func applyDBPoolSettings(db *sql.DB, cfg *config.Config) {
+	settings := buildDBPoolSettings(cfg)
+	db.SetMaxOpenConns(settings.MaxOpenConns)
+	db.SetMaxIdleConns(settings.MaxIdleConns)
+	db.SetConnMaxLifetime(settings.ConnMaxLifetime)
+	db.SetConnMaxIdleTime(settings.ConnMaxIdleTime)
+}

llm-gateway-competitors/sub2api-tar/backend/internal/repository/db_pool_test.go

@@ -0,0 +1,50 @@
+package repository
+
+import (
+	"database/sql"
+	"testing"
+	"time"
+
+	"github.com/Wei-Shaw/sub2api/internal/config"
+	"github.com/stretchr/testify/require"
+
+	_ "github.com/lib/pq"
+)
+
+func TestBuildDBPoolSettings(t *testing.T) {
+	cfg := &config.Config{
+		Database: config.DatabaseConfig{
+			MaxOpenConns:           50,
+			MaxIdleConns:           10,
+			ConnMaxLifetimeMinutes: 30,
+			ConnMaxIdleTimeMinutes: 5,
+		},
+	}
+
+	settings := buildDBPoolSettings(cfg)
+	require.Equal(t, 50, settings.MaxOpenConns)
+	require.Equal(t, 10, settings.MaxIdleConns)
+	require.Equal(t, 30*time.Minute, settings.ConnMaxLifetime)
+	require.Equal(t, 5*time.Minute, settings.ConnMaxIdleTime)
+}
+
+func TestApplyDBPoolSettings(t *testing.T) {
+	cfg := &config.Config{
+		Database: config.DatabaseConfig{
+			MaxOpenConns:           40,
+			MaxIdleConns:           8,
+			ConnMaxLifetimeMinutes: 15,
+			ConnMaxIdleTimeMinutes: 3,
+		},
+	}
+
+	db, err := sql.Open("postgres", "host=127.0.0.1 port=5432 user=postgres sslmode=disable")
+	require.NoError(t, err)
+	t.Cleanup(func() {
+		_ = db.Close()
+	})
+
+	applyDBPoolSettings(db, cfg)
+	stats := db.Stats()
+	require.Equal(t, 40, stats.MaxOpenConnections)
+}

llm-gateway-competitors/sub2api-tar/backend/internal/repository/email_cache.go

@@ -0,0 +1,108 @@
+package repository
+
+import (
+	"context"
+	"encoding/json"
+	"time"
+
+	"github.com/Wei-Shaw/sub2api/internal/service"
+	"github.com/redis/go-redis/v9"
+)
+
+const (
+	verifyCodeKeyPrefix          = "verify_code:"
+	passwordResetKeyPrefix       = "password_reset:"
+	passwordResetSentAtKeyPrefix = "password_reset_sent:"
+)
+
+// verifyCodeKey generates the Redis key for email verification code.
+func verifyCodeKey(email string) string {
+	return verifyCodeKeyPrefix + email
+}
+
+// passwordResetKey generates the Redis key for password reset token.
+func passwordResetKey(email string) string {
+	return passwordResetKeyPrefix + email
+}
+
+// passwordResetSentAtKey generates the Redis key for password reset email sent timestamp.
+func passwordResetSentAtKey(email string) string {
+	return passwordResetSentAtKeyPrefix + email
+}
+
+type emailCache struct {
+	rdb *redis.Client
+}
+
+func NewEmailCache(rdb *redis.Client) service.EmailCache {
+	return &emailCache{rdb: rdb}
+}
+
+func (c *emailCache) GetVerificationCode(ctx context.Context, email string) (*service.VerificationCodeData, error) {
+	key := verifyCodeKey(email)
+	val, err := c.rdb.Get(ctx, key).Result()
+	if err != nil {
+		return nil, err
+	}
+	var data service.VerificationCodeData
+	if err := json.Unmarshal([]byte(val), &data); err != nil {
+		return nil, err
+	}
+	return &data, nil
+}
+
+func (c *emailCache) SetVerificationCode(ctx context.Context, email string, data *service.VerificationCodeData, ttl time.Duration) error {
+	key := verifyCodeKey(email)
+	val, err := json.Marshal(data)
+	if err != nil {
+		return err
+	}
+	return c.rdb.Set(ctx, key, val, ttl).Err()
+}
+
+func (c *emailCache) DeleteVerificationCode(ctx context.Context, email string) error {
+	key := verifyCodeKey(email)
+	return c.rdb.Del(ctx, key).Err()
+}
+
+// Password reset token methods
+
+func (c *emailCache) GetPasswordResetToken(ctx context.Context, email string) (*service.PasswordResetTokenData, error) {
+	key := passwordResetKey(email)
+	val, err := c.rdb.Get(ctx, key).Result()
+	if err != nil {
+		return nil, err
+	}
+	var data service.PasswordResetTokenData
+	if err := json.Unmarshal([]byte(val), &data); err != nil {
+		return nil, err
+	}
+	return &data, nil
+}
+
+func (c *emailCache) SetPasswordResetToken(ctx context.Context, email string, data *service.PasswordResetTokenData, ttl time.Duration) error {
+	key := passwordResetKey(email)
+	val, err := json.Marshal(data)
+	if err != nil {
+		return err
+	}
+	return c.rdb.Set(ctx, key, val, ttl).Err()
+}
+
+func (c *emailCache) DeletePasswordResetToken(ctx context.Context, email string) error {
+	key := passwordResetKey(email)
+	return c.rdb.Del(ctx, key).Err()
+}
+
+// Password reset email cooldown methods
+
+func (c *emailCache) IsPasswordResetEmailInCooldown(ctx context.Context, email string) bool {
+	key := passwordResetSentAtKey(email)
+	exists, err := c.rdb.Exists(ctx, key).Result()
+	return err == nil && exists > 0
+}
+
+func (c *emailCache) SetPasswordResetEmailCooldown(ctx context.Context, email string, ttl time.Duration) error {
+	key := passwordResetSentAtKey(email)
+	return c.rdb.Set(ctx, key, "1", ttl).Err()
+}

llm-gateway-competitors/sub2api-tar/backend/internal/repository/email_cache_integration_test.go

@@ -0,0 +1,92 @@
+//go:build integration
+
+package repository
+
+import (
+	"errors"
+	"testing"
+	"time"
+
+	"github.com/Wei-Shaw/sub2api/internal/service"
+	"github.com/redis/go-redis/v9"
+	"github.com/stretchr/testify/require"
+	"github.com/stretchr/testify/suite"
+)
+
+type EmailCacheSuite struct {
+	IntegrationRedisSuite
+	cache service.EmailCache
+}
+
+func (s *EmailCacheSuite) SetupTest() {
+	s.IntegrationRedisSuite.SetupTest()
+	s.cache = NewEmailCache(s.rdb)
+}
+
+func (s *EmailCacheSuite) TestGetVerificationCode_Missing() {
+	_, err := s.cache.GetVerificationCode(s.ctx, "nonexistent@example.com")
+	require.True(s.T(), errors.Is(err, redis.Nil), "expected redis.Nil for missing verification code")
+}
+
+func (s *EmailCacheSuite) TestSetAndGetVerificationCode() {
+	email := "a@example.com"
+	emailTTL := 2 * time.Minute
+	data := &service.VerificationCodeData{Code: "123456", Attempts: 1, CreatedAt: time.Now()}
+
+	require.NoError(s.T(), s.cache.SetVerificationCode(s.ctx, email, data, emailTTL), "SetVerificationCode")
+
+	got, err := s.cache.GetVerificationCode(s.ctx, email)
+	require.NoError(s.T(), err, "GetVerificationCode")
+	require.Equal(s.T(), "123456", got.Code)
+	require.Equal(s.T(), 1, got.Attempts)
+}
+
+func (s *EmailCacheSuite) TestVerificationCode_TTL() {
+	email := "ttl@example.com"
+	emailTTL := 2 * time.Minute
+	data := &service.VerificationCodeData{Code: "654321", Attempts: 0, CreatedAt: time.Now()}
+
+	require.NoError(s.T(), s.cache.SetVerificationCode(s.ctx, email, data, emailTTL), "SetVerificationCode")
+
+	emailKey := verifyCodeKeyPrefix + email
+	ttl, err := s.rdb.TTL(s.ctx, emailKey).Result()
+	require.NoError(s.T(), err, "TTL emailKey")
+	s.AssertTTLWithin(ttl, 1*time.Second, emailTTL)
+}
+
+func (s *EmailCacheSuite) TestDeleteVerificationCode() {
+	email := "delete@example.com"
+	data := &service.VerificationCodeData{Code: "999999", Attempts: 0, CreatedAt: time.Now()}
+
+	require.NoError(s.T(), s.cache.SetVerificationCode(s.ctx, email, data, 2*time.Minute), "SetVerificationCode")
+
+	// Verify it exists
+	_, err := s.cache.GetVerificationCode(s.ctx, email)
+	require.NoError(s.T(), err, "GetVerificationCode before delete")
+
+	// Delete
+	require.NoError(s.T(), s.cache.DeleteVerificationCode(s.ctx, email), "DeleteVerificationCode")
+
+	// Verify it's gone
+	_, err = s.cache.GetVerificationCode(s.ctx, email)
+	require.True(s.T(), errors.Is(err, redis.Nil), "expected redis.Nil after delete")
+}
+
+func (s *EmailCacheSuite) TestDeleteVerificationCode_NonExistent() {
+	// Deleting a non-existent key should not error
+	require.NoError(s.T(), s.cache.DeleteVerificationCode(s.ctx, "nonexistent@example.com"), "DeleteVerificationCode non-existent")
+}
+
+func (s *EmailCacheSuite) TestGetVerificationCode_JSONCorruption() {
+	emailKey := verifyCodeKeyPrefix + "corrupted@example.com"
+
+	require.NoError(s.T(), s.rdb.Set(s.ctx, emailKey, "not-json", 1*time.Minute).Err(), "Set invalid JSON")
+
+	_, err := s.cache.GetVerificationCode(s.ctx, "corrupted@example.com")
+	require.Error(s.T(), err, "expected error for corrupted JSON")
+	require.False(s.T(), errors.Is(err, redis.Nil), "expected decoding error, not redis.Nil")
+}
+
+func TestEmailCacheSuite(t *testing.T) {
+	suite.Run(t, new(EmailCacheSuite))
+}

llm-gateway-competitors/sub2api-tar/backend/internal/repository/email_cache_test.go

@@ -0,0 +1,45 @@
+//go:build unit
+
+package repository
+
+import (
+	"testing"
+
+	"github.com/stretchr/testify/require"
+)
+
+func TestVerifyCodeKey(t *testing.T) {
+	tests := []struct {
+		name     string
+		email    string
+		expected string
+	}{
+		{
+			name:     "normal_email",
+			email:    "user@example.com",
+			expected: "verify_code:user@example.com",
+		},
+		{
+			name:     "empty_email",
+			email:    "",
+			expected: "verify_code:",
+		},
+		{
+			name:     "email_with_plus",
+			email:    "user+tag@example.com",
+			expected: "verify_code:user+tag@example.com",
+		},
+		{
+			name:     "email_with_special_chars",
+			email:    "user.name+tag@sub.domain.com",
+			expected: "verify_code:user.name+tag@sub.domain.com",
+		},
+	}
+
+	for _, tc := range tests {
+		t.Run(tc.name, func(t *testing.T) {
+			got := verifyCodeKey(tc.email)
+			require.Equal(t, tc.expected, got)
+		})
+	}
+}

llm-gateway-competitors/sub2api-tar/backend/internal/repository/ent.go

@@ -0,0 +1,99 @@
+// Package repository 提供应用程序的基础设施层组件。
+// 包括数据库连接初始化、ORM 客户端管理、Redis 连接、数据库迁移等核心功能。
+package repository
+
+import (
+	"context"
+	"database/sql"
+	"fmt"
+	"time"
+
+	"github.com/Wei-Shaw/sub2api/ent"
+	"github.com/Wei-Shaw/sub2api/internal/config"
+	"github.com/Wei-Shaw/sub2api/internal/pkg/timezone"
+	"github.com/Wei-Shaw/sub2api/migrations"
+
+	"entgo.io/ent/dialect"
+	entsql "entgo.io/ent/dialect/sql"
+	_ "github.com/lib/pq" // PostgreSQL 驱动，通过副作用导入注册驱动
+)
+
+// InitEnt 初始化 Ent ORM 客户端并返回客户端实例和底层的 *sql.DB。
+//
+// 该函数执行以下操作：
+//  1. 初始化全局时区设置，确保时间处理一致性
+//  2. 建立 PostgreSQL 数据库连接
+//  3. 自动执行数据库迁移，确保 schema 与代码同步
+//  4. 创建并返回 Ent 客户端实例
+//
+// 重要提示：调用者必须负责关闭返回的 ent.Client（关闭时会自动关闭底层的 driver/db）。
+//
+// 参数：
+//   - cfg: 应用程序配置，包含数据库连接信息和时区设置
+//
+// 返回：
+//   - *ent.Client: Ent ORM 客户端，用于执行数据库操作
+//   - *sql.DB: 底层的 SQL 数据库连接，可用于直接执行原生 SQL
+//   - error: 初始化过程中的错误
+func InitEnt(cfg *config.Config) (*ent.Client, *sql.DB, error) {
+	// 优先初始化时区设置，确保所有时间操作使用统一的时区。
+	// 这对于跨时区部署和日志时间戳的一致性至关重要。
+	if err := timezone.Init(cfg.Timezone); err != nil {
+		return nil, nil, err
+	}
+
+	// 构建包含时区信息的数据库连接字符串 (DSN)。
+	// 时区信息会传递给 PostgreSQL，确保数据库层面的时间处理正确。
+	dsn := cfg.Database.DSNWithTimezone(cfg.Timezone)
+
+	// 使用 Ent 的 SQL 驱动打开 PostgreSQL 连接。
+	// dialect.Postgres 指定使用 PostgreSQL 方言进行 SQL 生成。
+	drv, err := entsql.Open(dialect.Postgres, dsn)
+	if err != nil {
+		return nil, nil, err
+	}
+	applyDBPoolSettings(drv.DB(), cfg)
+
+	// 确保数据库 schema 已准备就绪。
+	// SQL 迁移文件是 schema 的权威来源（source of truth）。
+	// 这种方式比 Ent 的自动迁移更可控，支持复杂的迁移场景。
+	migrationCtx, cancel := context.WithTimeout(context.Background(), 10*time.Minute)
+	defer cancel()
+	if err := applyMigrationsFS(migrationCtx, drv.DB(), migrations.FS); err != nil {
+		_ = drv.Close() // 迁移失败时关闭驱动，避免资源泄露
+		return nil, nil, err
+	}
+
+	// 创建 Ent 客户端，绑定到已配置的数据库驱动。
+	client := ent.NewClient(ent.Driver(drv))
+
+	// 启动阶段：从配置或数据库中确保系统密钥可用。
+	if err := ensureBootstrapSecrets(migrationCtx, client, cfg); err != nil {
+		_ = client.Close()
+		return nil, nil, err
+	}
+
+	// 在密钥补齐后执行完整配置校验，避免空 jwt.secret 导致服务运行时失败。
+	if err := cfg.Validate(); err != nil {
+		_ = client.Close()
+		return nil, nil, fmt.Errorf("validate config after secret bootstrap: %w", err)
+	}
+
+	// SIMPLE 模式：启动时补齐各平台默认分组。
+	// - anthropic/openai/gemini: 确保存在 <platform>-default
+	// - antigravity: 仅要求存在 >=2 个未软删除分组（用于 claude/gemini 混合调度场景）
+	if cfg.RunMode == config.RunModeSimple {
+		seedCtx, seedCancel := context.WithTimeout(context.Background(), 30*time.Second)
+		defer seedCancel()
+		if err := ensureSimpleModeDefaultGroups(seedCtx, client); err != nil {
+			_ = client.Close()
+			return nil, nil, err
+		}
+		if err := ensureSimpleModeAdminConcurrency(seedCtx, client); err != nil {
+			_ = client.Close()
+			return nil, nil, err
+		}
+	}
+
+	return client, drv.DB(), nil
+}

llm-gateway-competitors/sub2api-tar/backend/internal/repository/error_passthrough_cache.go

@@ -0,0 +1,128 @@
+package repository
+
+import (
+	"context"
+	"encoding/json"
+	"log"
+	"sync"
+	"time"
+
+	"github.com/Wei-Shaw/sub2api/internal/model"
+	"github.com/Wei-Shaw/sub2api/internal/service"
+	"github.com/redis/go-redis/v9"
+)
+
+const (
+	errorPassthroughCacheKey  = "error_passthrough_rules"
+	errorPassthroughPubSubKey = "error_passthrough_rules_updated"
+	errorPassthroughCacheTTL  = 24 * time.Hour
+)
+
+type errorPassthroughCache struct {
+	rdb        *redis.Client
+	localCache []*model.ErrorPassthroughRule
+	localMu    sync.RWMutex
+}
+
+// NewErrorPassthroughCache 创建错误透传规则缓存
+func NewErrorPassthroughCache(rdb *redis.Client) service.ErrorPassthroughCache {
+	return &errorPassthroughCache{
+		rdb: rdb,
+	}
+}
+
+// Get 从缓存获取规则列表
+func (c *errorPassthroughCache) Get(ctx context.Context) ([]*model.ErrorPassthroughRule, bool) {
+	// 先检查本地缓存
+	c.localMu.RLock()
+	if c.localCache != nil {
+		rules := c.localCache
+		c.localMu.RUnlock()
+		return rules, true
+	}
+	c.localMu.RUnlock()
+
+	// 从 Redis 获取
+	data, err := c.rdb.Get(ctx, errorPassthroughCacheKey).Bytes()
+	if err != nil {
+		if err != redis.Nil {
+			log.Printf("[ErrorPassthroughCache] Failed to get from Redis: %v", err)
+		}
+		return nil, false
+	}
+
+	var rules []*model.ErrorPassthroughRule
+	if err := json.Unmarshal(data, &rules); err != nil {
+		log.Printf("[ErrorPassthroughCache] Failed to unmarshal rules: %v", err)
+		return nil, false
+	}
+
+	// 更新本地缓存
+	c.localMu.Lock()
+	c.localCache = rules
+	c.localMu.Unlock()
+
+	return rules, true
+}
+
+// Set 设置缓存
+func (c *errorPassthroughCache) Set(ctx context.Context, rules []*model.ErrorPassthroughRule) error {
+	data, err := json.Marshal(rules)
+	if err != nil {
+		return err
+	}
+
+	if err := c.rdb.Set(ctx, errorPassthroughCacheKey, data, errorPassthroughCacheTTL).Err(); err != nil {
+		return err
+	}
+
+	// 更新本地缓存
+	c.localMu.Lock()
+	c.localCache = rules
+	c.localMu.Unlock()
+
+	return nil
+}
+
+// Invalidate 使缓存失效
+func (c *errorPassthroughCache) Invalidate(ctx context.Context) error {
+	// 清除本地缓存
+	c.localMu.Lock()
+	c.localCache = nil
+	c.localMu.Unlock()
+
+	// 清除 Redis 缓存
+	return c.rdb.Del(ctx, errorPassthroughCacheKey).Err()
+}
+
+// NotifyUpdate 通知其他实例刷新缓存
+func (c *errorPassthroughCache) NotifyUpdate(ctx context.Context) error {
+	return c.rdb.Publish(ctx, errorPassthroughPubSubKey, "refresh").Err()
+}
+
+// SubscribeUpdates 订阅缓存更新通知
+func (c *errorPassthroughCache) SubscribeUpdates(ctx context.Context, handler func()) {
+	go func() {
+		sub := c.rdb.Subscribe(ctx, errorPassthroughPubSubKey)
+		defer func() { _ = sub.Close() }()
+
+		ch := sub.Channel()
+		for {
+			select {
+			case <-ctx.Done():
+				return
+			case msg := <-ch:
+				if msg == nil {
+					return
+				}
+				// 清除本地缓存，下次访问时会从 Redis 或数据库重新加载
+				c.localMu.Lock()
+				c.localCache = nil
+				c.localMu.Unlock()
+
+				// 调用处理函数
+				handler()
+			}
+		}
+	}()
+}

llm-gateway-competitors/sub2api-tar/backend/internal/repository/error_passthrough_repo.go

@@ -0,0 +1,181 @@
+package repository
+
+import (
+	"context"
+
+	"github.com/Wei-Shaw/sub2api/ent"
+	"github.com/Wei-Shaw/sub2api/ent/errorpassthroughrule"
+	"github.com/Wei-Shaw/sub2api/internal/model"
+	"github.com/Wei-Shaw/sub2api/internal/service"
+)
+
+type errorPassthroughRepository struct {
+	client *ent.Client
+}
+
+// NewErrorPassthroughRepository 创建错误透传规则仓库
+func NewErrorPassthroughRepository(client *ent.Client) service.ErrorPassthroughRepository {
+	return &errorPassthroughRepository{client: client}
+}
+
+// List 获取所有规则
+func (r *errorPassthroughRepository) List(ctx context.Context) ([]*model.ErrorPassthroughRule, error) {
+	rules, err := r.client.ErrorPassthroughRule.Query().
+		Order(ent.Asc(errorpassthroughrule.FieldPriority)).
+		All(ctx)
+	if err != nil {
+		return nil, err
+	}
+
+	result := make([]*model.ErrorPassthroughRule, len(rules))
+	for i, rule := range rules {
+		result[i] = r.toModel(rule)
+	}
+	return result, nil
+}
+
+// GetByID 根据 ID 获取规则
+func (r *errorPassthroughRepository) GetByID(ctx context.Context, id int64) (*model.ErrorPassthroughRule, error) {
+	rule, err := r.client.ErrorPassthroughRule.Get(ctx, id)
+	if err != nil {
+		if ent.IsNotFound(err) {
+			return nil, nil
+		}
+		return nil, err
+	}
+	return r.toModel(rule), nil
+}
+
+// Create 创建规则
+func (r *errorPassthroughRepository) Create(ctx context.Context, rule *model.ErrorPassthroughRule) (*model.ErrorPassthroughRule, error) {
+	builder := r.client.ErrorPassthroughRule.Create().
+		SetName(rule.Name).
+		SetEnabled(rule.Enabled).
+		SetPriority(rule.Priority).
+		SetMatchMode(rule.MatchMode).
+		SetPassthroughCode(rule.PassthroughCode).
+		SetPassthroughBody(rule.PassthroughBody).
+		SetSkipMonitoring(rule.SkipMonitoring)
+
+	if len(rule.ErrorCodes) > 0 {
+		builder.SetErrorCodes(rule.ErrorCodes)
+	}
+	if len(rule.Keywords) > 0 {
+		builder.SetKeywords(rule.Keywords)
+	}
+	if len(rule.Platforms) > 0 {
+		builder.SetPlatforms(rule.Platforms)
+	}
+	if rule.ResponseCode != nil {
+		builder.SetResponseCode(*rule.ResponseCode)
+	}
+	if rule.CustomMessage != nil {
+		builder.SetCustomMessage(*rule.CustomMessage)
+	}
+	if rule.Description != nil {
+		builder.SetDescription(*rule.Description)
+	}
+
+	created, err := builder.Save(ctx)
+	if err != nil {
+		return nil, err
+	}
+	return r.toModel(created), nil
+}
+
+// Update 更新规则
+func (r *errorPassthroughRepository) Update(ctx context.Context, rule *model.ErrorPassthroughRule) (*model.ErrorPassthroughRule, error) {
+	builder := r.client.ErrorPassthroughRule.UpdateOneID(rule.ID).
+		SetName(rule.Name).
+		SetEnabled(rule.Enabled).
+		SetPriority(rule.Priority).
+		SetMatchMode(rule.MatchMode).
+		SetPassthroughCode(rule.PassthroughCode).
+		SetPassthroughBody(rule.PassthroughBody).
+		SetSkipMonitoring(rule.SkipMonitoring)
+
+	// 处理可选字段
+	if len(rule.ErrorCodes) > 0 {
+		builder.SetErrorCodes(rule.ErrorCodes)
+	} else {
+		builder.ClearErrorCodes()
+	}
+	if len(rule.Keywords) > 0 {
+		builder.SetKeywords(rule.Keywords)
+	} else {
+		builder.ClearKeywords()
+	}
+	if len(rule.Platforms) > 0 {
+		builder.SetPlatforms(rule.Platforms)
+	} else {
+		builder.ClearPlatforms()
+	}
+	if rule.ResponseCode != nil {
+		builder.SetResponseCode(*rule.ResponseCode)
+	} else {
+		builder.ClearResponseCode()
+	}
+	if rule.CustomMessage != nil {
+		builder.SetCustomMessage(*rule.CustomMessage)
+	} else {
+		builder.ClearCustomMessage()
+	}
+	if rule.Description != nil {
+		builder.SetDescription(*rule.Description)
+	} else {
+		builder.ClearDescription()
+	}
+
+	updated, err := builder.Save(ctx)
+	if err != nil {
+		return nil, err
+	}
+	return r.toModel(updated), nil
+}
+
+// Delete 删除规则
+func (r *errorPassthroughRepository) Delete(ctx context.Context, id int64) error {
+	return r.client.ErrorPassthroughRule.DeleteOneID(id).Exec(ctx)
+}
+
+// toModel 将 Ent 实体转换为服务模型
+func (r *errorPassthroughRepository) toModel(e *ent.ErrorPassthroughRule) *model.ErrorPassthroughRule {
+	rule := &model.ErrorPassthroughRule{
+		ID:              int64(e.ID),
+		Name:            e.Name,
+		Enabled:         e.Enabled,
+		Priority:        e.Priority,
+		ErrorCodes:      e.ErrorCodes,
+		Keywords:        e.Keywords,
+		MatchMode:       e.MatchMode,
+		Platforms:       e.Platforms,
+		PassthroughCode: e.PassthroughCode,
+		PassthroughBody: e.PassthroughBody,
+		SkipMonitoring:  e.SkipMonitoring,
+		CreatedAt:       e.CreatedAt,
+		UpdatedAt:       e.UpdatedAt,
+	}
+
+	if e.ResponseCode != nil {
+		rule.ResponseCode = e.ResponseCode
+	}
+	if e.CustomMessage != nil {
+		rule.CustomMessage = e.CustomMessage
+	}
+	if e.Description != nil {
+		rule.Description = e.Description
+	}
+
+	// 确保切片不为 nil
+	if rule.ErrorCodes == nil {
+		rule.ErrorCodes = []int{}
+	}
+	if rule.Keywords == nil {
+		rule.Keywords = []string{}
+	}
+	if rule.Platforms == nil {
+		rule.Platforms = []string{}
+	}
+
+	return rule
+}

llm-gateway-competitors/sub2api-tar/backend/internal/repository/error_translate.go

@@ -0,0 +1,97 @@
+package repository
+
+import (
+	"context"
+	"database/sql"
+	"errors"
+	"strings"
+
+	dbent "github.com/Wei-Shaw/sub2api/ent"
+	infraerrors "github.com/Wei-Shaw/sub2api/internal/pkg/errors"
+	"github.com/lib/pq"
+)
+
+// clientFromContext 从 context 中获取事务 client，如果不存在则返回默认 client。
+//
+// 这个辅助函数支持 repository 方法在事务上下文中工作：
+// - 如果 context 中存在事务（通过 ent.NewTxContext 设置），返回事务的 client
+// - 否则返回传入的默认 client
+//
+// 使用示例：
+//
+//	func (r *someRepo) SomeMethod(ctx context.Context) error {
+//	    client := clientFromContext(ctx, r.client)
+//	    return client.SomeEntity.Create().Save(ctx)
+//	}
+func clientFromContext(ctx context.Context, defaultClient *dbent.Client) *dbent.Client {
+	if tx := dbent.TxFromContext(ctx); tx != nil {
+		return tx.Client()
+	}
+	return defaultClient
+}
+
+// translatePersistenceError 将数据库层错误翻译为业务层错误。
+//
+// 这是 Repository 层的核心错误处理函数，确保数据库细节不会泄露到业务层。
+// 通过统一的错误翻译，业务层可以使用语义明确的错误类型（如 ErrUserNotFound）
+// 而不是依赖于特定数据库的错误（如 sql.ErrNoRows）。
+//
+// 参数：
+//   - err: 原始数据库错误
+//   - notFound: 当记录不存在时返回的业务错误（可为 nil 表示不处理）
+//   - conflict: 当违反唯一约束时返回的业务错误（可为 nil 表示不处理）
+//
+// 返回：
+//   - 翻译后的业务错误，或原始错误（如果不匹配任何规则）
+//
+// 示例：
+//
+//	err := translatePersistenceError(dbErr, service.ErrUserNotFound, service.ErrEmailExists)
+func translatePersistenceError(err error, notFound, conflict *infraerrors.ApplicationError) error {
+	if err == nil {
+		return nil
+	}
+
+	// 兼容 Ent ORM 和标准 database/sql 的 NotFound 行为。
+	// Ent 使用自定义的 NotFoundError，而标准库使用 sql.ErrNoRows。
+	// 这里同时处理两种情况，保持业务错误映射一致。
+	if notFound != nil && (errors.Is(err, sql.ErrNoRows) || dbent.IsNotFound(err)) {
+		return notFound.WithCause(err)
+	}
+
+	// 处理唯一约束冲突（如邮箱已存在、名称重复等）
+	if conflict != nil && isUniqueConstraintViolation(err) {
+		return conflict.WithCause(err)
+	}
+
+	// 未匹配任何规则，返回原始错误
+	return err
+}
+
+// isUniqueConstraintViolation 判断错误是否为唯一约束冲突。
+//
+// 支持多种检测方式：
+//  1. PostgreSQL 特定错误码 23505（唯一约束冲突）
+//  2. 错误消息中包含的通用关键词
+//
+// 这种多层次的检测确保了对不同数据库驱动和 ORM 的兼容性。
+func isUniqueConstraintViolation(err error) bool {
+	if err == nil {
+		return false
+	}
+
+	// 优先检测 PostgreSQL 特定错误码（最精确）。
+	// 错误码 23505 对应 unique_violation。
+	// 参考：https://www.postgresql.org/docs/current/errcodes-appendix.html
+	var pgErr *pq.Error
+	if errors.As(err, &pgErr) {
+		return pgErr.Code == "23505"
+	}
+
+	// 回退到错误消息检测（兼容其他场景）。
+	// 这些关键词覆盖了 PostgreSQL、MySQL 等主流数据库的错误消息。
+	msg := strings.ToLower(err.Error())
+	return strings.Contains(msg, "duplicate key") ||
+		strings.Contains(msg, "unique constraint") ||
+		strings.Contains(msg, "duplicate entry")
+}

llm-gateway-competitors/sub2api-tar/backend/internal/repository/fixtures_integration_test.go

@@ -0,0 +1,427 @@
+//go:build integration
+
+package repository
+
+import (
+	"context"
+	"testing"
+	"time"
+
+	dbent "github.com/Wei-Shaw/sub2api/ent"
+	"github.com/Wei-Shaw/sub2api/internal/service"
+	"github.com/stretchr/testify/require"
+)
+
+func mustCreateUser(t *testing.T, client *dbent.Client, u *service.User) *service.User {
+	t.Helper()
+	ctx := context.Background()
+
+	if u.Email == "" {
+		u.Email = "user-" + time.Now().Format(time.RFC3339Nano) + "@example.com"
+	}
+	if u.PasswordHash == "" {
+		u.PasswordHash = "test-password-hash"
+	}
+	if u.Role == "" {
+		u.Role = service.RoleUser
+	}
+	if u.Status == "" {
+		u.Status = service.StatusActive
+	}
+	if u.Concurrency == 0 {
+		u.Concurrency = 5
+	}
+
+	create := client.User.Create().
+		SetEmail(u.Email).
+		SetPasswordHash(u.PasswordHash).
+		SetRole(u.Role).
+		SetStatus(u.Status).
+		SetBalance(u.Balance).
+		SetConcurrency(u.Concurrency).
+		SetUsername(u.Username).
+		SetNotes(u.Notes)
+	if !u.CreatedAt.IsZero() {
+		create.SetCreatedAt(u.CreatedAt)
+	}
+	if !u.UpdatedAt.IsZero() {
+		create.SetUpdatedAt(u.UpdatedAt)
+	}
+
+	created, err := create.Save(ctx)
+	require.NoError(t, err, "create user")
+
+	u.ID = created.ID
+	u.CreatedAt = created.CreatedAt
+	u.UpdatedAt = created.UpdatedAt
+
+	if len(u.AllowedGroups) > 0 {
+		for _, groupID := range u.AllowedGroups {
+			_, err := client.UserAllowedGroup.Create().
+				SetUserID(u.ID).
+				SetGroupID(groupID).
+				Save(ctx)
+			require.NoError(t, err, "create user_allowed_groups row")
+		}
+	}
+
+	return u
+}
+
+func mustCreateGroup(t *testing.T, client *dbent.Client, g *service.Group) *service.Group {
+	t.Helper()
+	ctx := context.Background()
+
+	if g.Platform == "" {
+		g.Platform = service.PlatformAnthropic
+	}
+	if g.Status == "" {
+		g.Status = service.StatusActive
+	}
+	if g.SubscriptionType == "" {
+		g.SubscriptionType = service.SubscriptionTypeStandard
+	}
+
+	create := client.Group.Create().
+		SetName(g.Name).
+		SetPlatform(g.Platform).
+		SetStatus(g.Status).
+		SetSubscriptionType(g.SubscriptionType).
+		SetRateMultiplier(g.RateMultiplier).
+		SetIsExclusive(g.IsExclusive)
+	if g.Description != "" {
+		create.SetDescription(g.Description)
+	}
+	if g.DailyLimitUSD != nil {
+		create.SetDailyLimitUsd(*g.DailyLimitUSD)
+	}
+	if g.WeeklyLimitUSD != nil {
+		create.SetWeeklyLimitUsd(*g.WeeklyLimitUSD)
+	}
+	if g.MonthlyLimitUSD != nil {
+		create.SetMonthlyLimitUsd(*g.MonthlyLimitUSD)
+	}
+	if !g.CreatedAt.IsZero() {
+		create.SetCreatedAt(g.CreatedAt)
+	}
+	if !g.UpdatedAt.IsZero() {
+		create.SetUpdatedAt(g.UpdatedAt)
+	}
+
+	created, err := create.Save(ctx)
+	require.NoError(t, err, "create group")
+
+	g.ID = created.ID
+	g.CreatedAt = created.CreatedAt
+	g.UpdatedAt = created.UpdatedAt
+	return g
+}
+
+func mustCreateProxy(t *testing.T, client *dbent.Client, p *service.Proxy) *service.Proxy {
+	t.Helper()
+	ctx := context.Background()
+
+	if p.Protocol == "" {
+		p.Protocol = "http"
+	}
+	if p.Host == "" {
+		p.Host = "127.0.0.1"
+	}
+	if p.Port == 0 {
+		p.Port = 8080
+	}
+	if p.Status == "" {
+		p.Status = service.StatusActive
+	}
+
+	create := client.Proxy.Create().
+		SetName(p.Name).
+		SetProtocol(p.Protocol).
+		SetHost(p.Host).
+		SetPort(p.Port).
+		SetStatus(p.Status)
+	if p.Username != "" {
+		create.SetUsername(p.Username)
+	}
+	if p.Password != "" {
+		create.SetPassword(p.Password)
+	}
+	if !p.CreatedAt.IsZero() {
+		create.SetCreatedAt(p.CreatedAt)
+	}
+	if !p.UpdatedAt.IsZero() {
+		create.SetUpdatedAt(p.UpdatedAt)
+	}
+
+	created, err := create.Save(ctx)
+	require.NoError(t, err, "create proxy")
+
+	p.ID = created.ID
+	p.CreatedAt = created.CreatedAt
+	p.UpdatedAt = created.UpdatedAt
+	return p
+}
+
+func mustCreateAccount(t *testing.T, client *dbent.Client, a *service.Account) *service.Account {
+	t.Helper()
+	ctx := context.Background()
+
+	if a.Platform == "" {
+		a.Platform = service.PlatformAnthropic
+	}
+	if a.Type == "" {
+		a.Type = service.AccountTypeOAuth
+	}
+	if a.Status == "" {
+		a.Status = service.StatusActive
+	}
+	if a.Concurrency == 0 {
+		a.Concurrency = 3
+	}
+	if a.Priority == 0 {
+		a.Priority = 50
+	}
+	if !a.Schedulable {
+		a.Schedulable = true
+	}
+	if a.Credentials == nil {
+		a.Credentials = map[string]any{}
+	}
+	if a.Extra == nil {
+		a.Extra = map[string]any{}
+	}
+
+	create := client.Account.Create().
+		SetName(a.Name).
+		SetPlatform(a.Platform).
+		SetType(a.Type).
+		SetCredentials(a.Credentials).
+		SetExtra(a.Extra).
+		SetConcurrency(a.Concurrency).
+		SetPriority(a.Priority).
+		SetStatus(a.Status).
+		SetSchedulable(a.Schedulable).
+		SetErrorMessage(a.ErrorMessage)
+
+	if a.ProxyID != nil {
+		create.SetProxyID(*a.ProxyID)
+	}
+	if a.LastUsedAt != nil {
+		create.SetLastUsedAt(*a.LastUsedAt)
+	}
+	if a.RateLimitedAt != nil {
+		create.SetRateLimitedAt(*a.RateLimitedAt)
+	}
+	if a.RateLimitResetAt != nil {
+		create.SetRateLimitResetAt(*a.RateLimitResetAt)
+	}
+	if a.OverloadUntil != nil {
+		create.SetOverloadUntil(*a.OverloadUntil)
+	}
+	if a.SessionWindowStart != nil {
+		create.SetSessionWindowStart(*a.SessionWindowStart)
+	}
+	if a.SessionWindowEnd != nil {
+		create.SetSessionWindowEnd(*a.SessionWindowEnd)
+	}
+	if a.SessionWindowStatus != "" {
+		create.SetSessionWindowStatus(a.SessionWindowStatus)
+	}
+	if !a.CreatedAt.IsZero() {
+		create.SetCreatedAt(a.CreatedAt)
+	}
+	if !a.UpdatedAt.IsZero() {
+		create.SetUpdatedAt(a.UpdatedAt)
+	}
+
+	created, err := create.Save(ctx)
+	require.NoError(t, err, "create account")
+
+	a.ID = created.ID
+	a.CreatedAt = created.CreatedAt
+	a.UpdatedAt = created.UpdatedAt
+	return a
+}
+
+func mustCreateApiKey(t *testing.T, client *dbent.Client, k *service.APIKey) *service.APIKey {
+	t.Helper()
+	ctx := context.Background()
+
+	if k.Status == "" {
+		k.Status = service.StatusActive
+	}
+	if k.Key == "" {
+		k.Key = "sk-" + time.Now().Format("150405.000000")
+	}
+	if k.Name == "" {
+		k.Name = "default"
+	}
+
+	create := client.APIKey.Create().
+		SetUserID(k.UserID).
+		SetKey(k.Key).
+		SetName(k.Name).
+		SetStatus(k.Status)
+	if k.Quota != 0 {
+		create.SetQuota(k.Quota)
+	}
+	if k.QuotaUsed != 0 {
+		create.SetQuotaUsed(k.QuotaUsed)
+	}
+	if k.RateLimit5h != 0 {
+		create.SetRateLimit5h(k.RateLimit5h)
+	}
+	if k.RateLimit1d != 0 {
+		create.SetRateLimit1d(k.RateLimit1d)
+	}
+	if k.RateLimit7d != 0 {
+		create.SetRateLimit7d(k.RateLimit7d)
+	}
+	if k.Usage5h != 0 {
+		create.SetUsage5h(k.Usage5h)
+	}
+	if k.Usage1d != 0 {
+		create.SetUsage1d(k.Usage1d)
+	}
+	if k.Usage7d != 0 {
+		create.SetUsage7d(k.Usage7d)
+	}
+	if k.Window5hStart != nil {
+		create.SetWindow5hStart(*k.Window5hStart)
+	}
+	if k.Window1dStart != nil {
+		create.SetWindow1dStart(*k.Window1dStart)
+	}
+	if k.Window7dStart != nil {
+		create.SetWindow7dStart(*k.Window7dStart)
+	}
+	if k.ExpiresAt != nil {
+		create.SetExpiresAt(*k.ExpiresAt)
+	}
+	if k.GroupID != nil {
+		create.SetGroupID(*k.GroupID)
+	}
+	if !k.CreatedAt.IsZero() {
+		create.SetCreatedAt(k.CreatedAt)
+	}
+	if !k.UpdatedAt.IsZero() {
+		create.SetUpdatedAt(k.UpdatedAt)
+	}
+
+	created, err := create.Save(ctx)
+	require.NoError(t, err, "create api key")
+
+	k.ID = created.ID
+	k.CreatedAt = created.CreatedAt
+	k.UpdatedAt = created.UpdatedAt
+	return k
+}
+
+func mustCreateRedeemCode(t *testing.T, client *dbent.Client, c *service.RedeemCode) *service.RedeemCode {
+	t.Helper()
+	ctx := context.Background()
+
+	if c.Status == "" {
+		c.Status = service.StatusUnused
+	}
+	if c.Type == "" {
+		c.Type = service.RedeemTypeBalance
+	}
+	if c.Code == "" {
+		c.Code = "rc-" + time.Now().Format("150405.000000")
+	}
+
+	create := client.RedeemCode.Create().
+		SetCode(c.Code).
+		SetType(c.Type).
+		SetValue(c.Value).
+		SetStatus(c.Status).
+		SetNotes(c.Notes).
+		SetValidityDays(c.ValidityDays)
+	if c.UsedBy != nil {
+		create.SetUsedBy(*c.UsedBy)
+	}
+	if c.UsedAt != nil {
+		create.SetUsedAt(*c.UsedAt)
+	}
+	if c.GroupID != nil {
+		create.SetGroupID(*c.GroupID)
+	}
+	if !c.CreatedAt.IsZero() {
+		create.SetCreatedAt(c.CreatedAt)
+	}
+
+	created, err := create.Save(ctx)
+	require.NoError(t, err, "create redeem code")
+
+	c.ID = created.ID
+	c.CreatedAt = created.CreatedAt
+	return c
+}
+
+func mustCreateSubscription(t *testing.T, client *dbent.Client, s *service.UserSubscription) *service.UserSubscription {
+	t.Helper()
+	ctx := context.Background()
+
+	if s.Status == "" {
+		s.Status = service.SubscriptionStatusActive
+	}
+	now := time.Now()
+	if s.StartsAt.IsZero() {
+		s.StartsAt = now.Add(-1 * time.Hour)
+	}
+	if s.ExpiresAt.IsZero() {
+		s.ExpiresAt = now.Add(24 * time.Hour)
+	}
+	if s.AssignedAt.IsZero() {
+		s.AssignedAt = now
+	}
+	if s.CreatedAt.IsZero() {
+		s.CreatedAt = now
+	}
+	if s.UpdatedAt.IsZero() {
+		s.UpdatedAt = now
+	}
+
+	create := client.UserSubscription.Create().
+		SetUserID(s.UserID).
+		SetGroupID(s.GroupID).
+		SetStartsAt(s.StartsAt).
+		SetExpiresAt(s.ExpiresAt).
+		SetStatus(s.Status).
+		SetAssignedAt(s.AssignedAt).
+		SetNotes(s.Notes).
+		SetDailyUsageUsd(s.DailyUsageUSD).
+		SetWeeklyUsageUsd(s.WeeklyUsageUSD).
+		SetMonthlyUsageUsd(s.MonthlyUsageUSD)
+
+	if s.AssignedBy != nil {
+		create.SetAssignedBy(*s.AssignedBy)
+	}
+	if !s.CreatedAt.IsZero() {
+		create.SetCreatedAt(s.CreatedAt)
+	}
+	if !s.UpdatedAt.IsZero() {
+		create.SetUpdatedAt(s.UpdatedAt)
+	}
+
+	created, err := create.Save(ctx)
+	require.NoError(t, err, "create user subscription")
+
+	s.ID = created.ID
+	s.CreatedAt = created.CreatedAt
+	s.UpdatedAt = created.UpdatedAt
+	return s
+}
+
+func mustBindAccountToGroup(t *testing.T, client *dbent.Client, accountID, groupID int64, priority int) {
+	t.Helper()
+	ctx := context.Background()
+
+	_, err := client.AccountGroup.Create().
+		SetAccountID(accountID).
+		SetGroupID(groupID).
+		SetPriority(priority).
+		Save(ctx)
+	require.NoError(t, err, "create account_group")
+}

llm-gateway-competitors/sub2api-tar/backend/internal/repository/gateway_cache.go

@@ -0,0 +1,53 @@
+package repository
+
+import (
+	"context"
+	"fmt"
+	"time"
+
+	"github.com/Wei-Shaw/sub2api/internal/service"
+	"github.com/redis/go-redis/v9"
+)
+
+const stickySessionPrefix = "sticky_session:"
+
+type gatewayCache struct {
+	rdb *redis.Client
+}
+
+func NewGatewayCache(rdb *redis.Client) service.GatewayCache {
+	return &gatewayCache{rdb: rdb}
+}
+
+// buildSessionKey 构建 session key，包含 groupID 实现分组隔离
+// 格式: sticky_session:{groupID}:{sessionHash}
+func buildSessionKey(groupID int64, sessionHash string) string {
+	return fmt.Sprintf("%s%d:%s", stickySessionPrefix, groupID, sessionHash)
+}
+
+func (c *gatewayCache) GetSessionAccountID(ctx context.Context, groupID int64, sessionHash string) (int64, error) {
+	key := buildSessionKey(groupID, sessionHash)
+	return c.rdb.Get(ctx, key).Int64()
+}
+
+func (c *gatewayCache) SetSessionAccountID(ctx context.Context, groupID int64, sessionHash string, accountID int64, ttl time.Duration) error {
+	key := buildSessionKey(groupID, sessionHash)
+	return c.rdb.Set(ctx, key, accountID, ttl).Err()
+}
+
+func (c *gatewayCache) RefreshSessionTTL(ctx context.Context, groupID int64, sessionHash string, ttl time.Duration) error {
+	key := buildSessionKey(groupID, sessionHash)
+	return c.rdb.Expire(ctx, key, ttl).Err()
+}
+
+// DeleteSessionAccountID 删除粘性会话与账号的绑定关系。
+// 当检测到绑定的账号不可用（如状态错误、禁用、不可调度等）时调用，
+// 以便下次请求能够重新选择可用账号。
+//
+// DeleteSessionAccountID removes the sticky session binding for the given session.
+// Called when the bound account becomes unavailable (e.g., error status, disabled,
+// or unschedulable), allowing subsequent requests to select a new available account.
+func (c *gatewayCache) DeleteSessionAccountID(ctx context.Context, groupID int64, sessionHash string) error {
+	key := buildSessionKey(groupID, sessionHash)
+	return c.rdb.Del(ctx, key).Err()
+}

llm-gateway-competitors/sub2api-tar/backend/internal/repository/gateway_cache_integration_test.go

@@ -0,0 +1,109 @@
+//go:build integration
+
+package repository
+
+import (
+	"errors"
+	"testing"
+	"time"
+
+	"github.com/Wei-Shaw/sub2api/internal/service"
+	"github.com/redis/go-redis/v9"
+	"github.com/stretchr/testify/require"
+	"github.com/stretchr/testify/suite"
+)
+
+type GatewayCacheSuite struct {
+	IntegrationRedisSuite
+	cache service.GatewayCache
+}
+
+func (s *GatewayCacheSuite) SetupTest() {
+	s.IntegrationRedisSuite.SetupTest()
+	s.cache = NewGatewayCache(s.rdb)
+}
+
+func (s *GatewayCacheSuite) TestGetSessionAccountID_Missing() {
+	_, err := s.cache.GetSessionAccountID(s.ctx, 1, "nonexistent")
+	require.True(s.T(), errors.Is(err, redis.Nil), "expected redis.Nil for missing session")
+}
+
+func (s *GatewayCacheSuite) TestSetAndGetSessionAccountID() {
+	sessionID := "s1"
+	accountID := int64(99)
+	groupID := int64(1)
+	sessionTTL := 1 * time.Minute
+
+	require.NoError(s.T(), s.cache.SetSessionAccountID(s.ctx, groupID, sessionID, accountID, sessionTTL), "SetSessionAccountID")
+
+	sid, err := s.cache.GetSessionAccountID(s.ctx, groupID, sessionID)
+	require.NoError(s.T(), err, "GetSessionAccountID")
+	require.Equal(s.T(), accountID, sid, "session id mismatch")
+}
+
+func (s *GatewayCacheSuite) TestSessionAccountID_TTL() {
+	sessionID := "s2"
+	accountID := int64(100)
+	groupID := int64(1)
+	sessionTTL := 1 * time.Minute
+
+	require.NoError(s.T(), s.cache.SetSessionAccountID(s.ctx, groupID, sessionID, accountID, sessionTTL), "SetSessionAccountID")
+
+	sessionKey := buildSessionKey(groupID, sessionID)
+	ttl, err := s.rdb.TTL(s.ctx, sessionKey).Result()
+	require.NoError(s.T(), err, "TTL sessionKey after Set")
+	s.AssertTTLWithin(ttl, 1*time.Second, sessionTTL)
+}
+
+func (s *GatewayCacheSuite) TestRefreshSessionTTL() {
+	sessionID := "s3"
+	accountID := int64(101)
+	groupID := int64(1)
+	initialTTL := 1 * time.Minute
+	refreshTTL := 3 * time.Minute
+
+	require.NoError(s.T(), s.cache.SetSessionAccountID(s.ctx, groupID, sessionID, accountID, initialTTL), "SetSessionAccountID")
+
+	require.NoError(s.T(), s.cache.RefreshSessionTTL(s.ctx, groupID, sessionID, refreshTTL), "RefreshSessionTTL")
+
+	sessionKey := buildSessionKey(groupID, sessionID)
+	ttl, err := s.rdb.TTL(s.ctx, sessionKey).Result()
+	require.NoError(s.T(), err, "TTL after Refresh")
+	s.AssertTTLWithin(ttl, 1*time.Second, refreshTTL)
+}
+
+func (s *GatewayCacheSuite) TestRefreshSessionTTL_MissingKey() {
+	// RefreshSessionTTL on a missing key should not error (no-op)
+	err := s.cache.RefreshSessionTTL(s.ctx, 1, "missing-session", 1*time.Minute)
+	require.NoError(s.T(), err, "RefreshSessionTTL on missing key should not error")
+}
+
+func (s *GatewayCacheSuite) TestDeleteSessionAccountID() {
+	sessionID := "openai:s4"
+	accountID := int64(102)
+	groupID := int64(1)
+	sessionTTL := 1 * time.Minute
+
+	require.NoError(s.T(), s.cache.SetSessionAccountID(s.ctx, groupID, sessionID, accountID, sessionTTL), "SetSessionAccountID")
+	require.NoError(s.T(), s.cache.DeleteSessionAccountID(s.ctx, groupID, sessionID), "DeleteSessionAccountID")
+
+	_, err := s.cache.GetSessionAccountID(s.ctx, groupID, sessionID)
+	require.True(s.T(), errors.Is(err, redis.Nil), "expected redis.Nil after delete")
+}
+
+func (s *GatewayCacheSuite) TestGetSessionAccountID_CorruptedValue() {
+	sessionID := "corrupted"
+	groupID := int64(1)
+	sessionKey := buildSessionKey(groupID, sessionID)
+
+	// Set a non-integer value
+	require.NoError(s.T(), s.rdb.Set(s.ctx, sessionKey, "not-a-number", 1*time.Minute).Err(), "Set invalid value")
+
+	_, err := s.cache.GetSessionAccountID(s.ctx, groupID, sessionID)
+	require.Error(s.T(), err, "expected error for corrupted value")
+	require.False(s.T(), errors.Is(err, redis.Nil), "expected parsing error, not redis.Nil")
+}
+
+func TestGatewayCacheSuite(t *testing.T) {
+	suite.Run(t, new(GatewayCacheSuite))
+}

llm-gateway-competitors/sub2api-tar/backend/internal/repository/gateway_routing_integration_test.go

@@ -0,0 +1,250 @@
+//go:build integration
+
+package repository
+
+import (
+	"context"
+	"testing"
+
+	dbent "github.com/Wei-Shaw/sub2api/ent"
+	"github.com/Wei-Shaw/sub2api/internal/service"
+	"github.com/stretchr/testify/suite"
+)
+
+// GatewayRoutingSuite 测试网关路由相关的数据库查询
+// 验证账户选择和分流逻辑在真实数据库环境下的行为
+type GatewayRoutingSuite struct {
+	suite.Suite
+	ctx         context.Context
+	client      *dbent.Client
+	accountRepo *accountRepository
+}
+
+func (s *GatewayRoutingSuite) SetupTest() {
+	s.ctx = context.Background()
+	tx := testEntTx(s.T())
+	s.client = tx.Client()
+	s.accountRepo = newAccountRepositoryWithSQL(s.client, tx, nil)
+}
+
+func TestGatewayRoutingSuite(t *testing.T) {
+	suite.Run(t, new(GatewayRoutingSuite))
+}
+
+// TestListSchedulableByPlatforms_GeminiAndAntigravity 验证多平台账户查询
+func (s *GatewayRoutingSuite) TestListSchedulableByPlatforms_GeminiAndAntigravity() {
+	// 创建各平台账户
+	geminiAcc := mustCreateAccount(s.T(), s.client, &service.Account{
+		Name:        "gemini-oauth",
+		Platform:    service.PlatformGemini,
+		Type:        service.AccountTypeOAuth,
+		Status:      service.StatusActive,
+		Schedulable: true,
+		Priority:    1,
+	})
+
+	antigravityAcc := mustCreateAccount(s.T(), s.client, &service.Account{
+		Name:        "antigravity-oauth",
+		Platform:    service.PlatformAntigravity,
+		Type:        service.AccountTypeOAuth,
+		Status:      service.StatusActive,
+		Schedulable: true,
+		Priority:    2,
+		Credentials: map[string]any{
+			"access_token":  "test-token",
+			"refresh_token": "test-refresh",
+			"project_id":    "test-project",
+		},
+	})
+
+	// 创建不应被选中的 anthropic 账户
+	mustCreateAccount(s.T(), s.client, &service.Account{
+		Name:        "anthropic-oauth",
+		Platform:    service.PlatformAnthropic,
+		Type:        service.AccountTypeOAuth,
+		Status:      service.StatusActive,
+		Schedulable: true,
+		Priority:    0,
+	})
+
+	// 查询 gemini + antigravity 平台
+	accounts, err := s.accountRepo.ListSchedulableByPlatforms(s.ctx, []string{
+		service.PlatformGemini,
+		service.PlatformAntigravity,
+	})
+
+	s.Require().NoError(err)
+	s.Require().Len(accounts, 2, "应返回 gemini 和 antigravity 两个账户")
+
+	// 验证返回的账户平台
+	platforms := make(map[string]bool)
+	for _, acc := range accounts {
+		platforms[acc.Platform] = true
+	}
+	s.Require().True(platforms[service.PlatformGemini], "应包含 gemini 账户")
+	s.Require().True(platforms[service.PlatformAntigravity], "应包含 antigravity 账户")
+	s.Require().False(platforms[service.PlatformAnthropic], "不应包含 anthropic 账户")
+
+	// 验证账户 ID 匹配
+	ids := make(map[int64]bool)
+	for _, acc := range accounts {
+		ids[acc.ID] = true
+	}
+	s.Require().True(ids[geminiAcc.ID])
+	s.Require().True(ids[antigravityAcc.ID])
+}
+
+// TestListSchedulableByGroupIDAndPlatforms_WithGroupBinding 验证按分组过滤
+func (s *GatewayRoutingSuite) TestListSchedulableByGroupIDAndPlatforms_WithGroupBinding() {
+	// 创建 gemini 分组
+	group := mustCreateGroup(s.T(), s.client, &service.Group{
+		Name:     "gemini-group",
+		Platform: service.PlatformGemini,
+		Status:   service.StatusActive,
+	})
+
+	// 创建账户
+	boundAcc := mustCreateAccount(s.T(), s.client, &service.Account{
+		Name:        "bound-antigravity",
+		Platform:    service.PlatformAntigravity,
+		Status:      service.StatusActive,
+		Schedulable: true,
+	})
+	unboundAcc := mustCreateAccount(s.T(), s.client, &service.Account{
+		Name:        "unbound-antigravity",
+		Platform:    service.PlatformAntigravity,
+		Status:      service.StatusActive,
+		Schedulable: true,
+	})
+
+	// 只绑定一个账户到分组
+	mustBindAccountToGroup(s.T(), s.client, boundAcc.ID, group.ID, 1)
+
+	// 查询分组内的账户
+	accounts, err := s.accountRepo.ListSchedulableByGroupIDAndPlatforms(s.ctx, group.ID, []string{
+		service.PlatformGemini,
+		service.PlatformAntigravity,
+	})
+
+	s.Require().NoError(err)
+	s.Require().Len(accounts, 1, "应只返回绑定到分组的账户")
+	s.Require().Equal(boundAcc.ID, accounts[0].ID)
+
+	// 确认未绑定的账户不在结果中
+	for _, acc := range accounts {
+		s.Require().NotEqual(unboundAcc.ID, acc.ID, "不应包含未绑定的账户")
+	}
+}
+
+// TestListSchedulableByPlatform_Antigravity 验证单平台查询
+func (s *GatewayRoutingSuite) TestListSchedulableByPlatform_Antigravity() {
+	// 创建多种平台账户
+	mustCreateAccount(s.T(), s.client, &service.Account{
+		Name:        "gemini-1",
+		Platform:    service.PlatformGemini,
+		Status:      service.StatusActive,
+		Schedulable: true,
+	})
+
+	antigravity := mustCreateAccount(s.T(), s.client, &service.Account{
+		Name:        "antigravity-1",
+		Platform:    service.PlatformAntigravity,
+		Status:      service.StatusActive,
+		Schedulable: true,
+	})
+
+	// 只查询 antigravity 平台
+	accounts, err := s.accountRepo.ListSchedulableByPlatform(s.ctx, service.PlatformAntigravity)
+
+	s.Require().NoError(err)
+	s.Require().Len(accounts, 1)
+	s.Require().Equal(antigravity.ID, accounts[0].ID)
+	s.Require().Equal(service.PlatformAntigravity, accounts[0].Platform)
+}
+
+// TestSchedulableFilter_ExcludesInactive 验证不可调度账户被过滤
+func (s *GatewayRoutingSuite) TestSchedulableFilter_ExcludesInactive() {
+	// 创建可调度账户
+	activeAcc := mustCreateAccount(s.T(), s.client, &service.Account{
+		Name:        "active-antigravity",
+		Platform:    service.PlatformAntigravity,
+		Status:      service.StatusActive,
+		Schedulable: true,
+	})
+
+	// 创建不可调度账户（需要先创建再更新，因为 fixture 默认设置 Schedulable=true）
+	inactiveAcc := mustCreateAccount(s.T(), s.client, &service.Account{
+		Name:     "inactive-antigravity",
+		Platform: service.PlatformAntigravity,
+		Status:   service.StatusActive,
+	})
+	s.Require().NoError(s.client.Account.UpdateOneID(inactiveAcc.ID).SetSchedulable(false).Exec(s.ctx))
+
+	// 创建错误状态账户
+	mustCreateAccount(s.T(), s.client, &service.Account{
+		Name:        "error-antigravity",
+		Platform:    service.PlatformAntigravity,
+		Status:      service.StatusError,
+		Schedulable: true,
+	})
+
+	accounts, err := s.accountRepo.ListSchedulableByPlatform(s.ctx, service.PlatformAntigravity)
+
+	s.Require().NoError(err)
+	s.Require().Len(accounts, 1, "应只返回可调度的 active 账户")
+	s.Require().Equal(activeAcc.ID, accounts[0].ID)
+}
+
+// TestPlatformRoutingDecision 验证平台路由决策
+// 这个测试模拟 Handler 层在选择账户后的路由决策逻辑
+func (s *GatewayRoutingSuite) TestPlatformRoutingDecision() {
+	// 创建两种平台的账户
+	geminiAcc := mustCreateAccount(s.T(), s.client, &service.Account{
+		Name:        "gemini-route-test",
+		Platform:    service.PlatformGemini,
+		Status:      service.StatusActive,
+		Schedulable: true,
+	})
+
+	antigravityAcc := mustCreateAccount(s.T(), s.client, &service.Account{
+		Name:        "antigravity-route-test",
+		Platform:    service.PlatformAntigravity,
+		Status:      service.StatusActive,
+		Schedulable: true,
+	})
+
+	tests := []struct {
+		name            string
+		accountID       int64
+		expectedService string
+	}{
+		{
+			name:            "Gemini账户路由到ForwardNative",
+			accountID:       geminiAcc.ID,
+			expectedService: "GeminiMessagesCompatService.ForwardNative",
+		},
+		{
+			name:            "Antigravity账户路由到ForwardGemini",
+			accountID:       antigravityAcc.ID,
+			expectedService: "AntigravityGatewayService.ForwardGemini",
+		},
+	}
+
+	for _, tt := range tests {
+		s.Run(tt.name, func() {
+			// 从数据库获取账户
+			account, err := s.accountRepo.GetByID(s.ctx, tt.accountID)
+			s.Require().NoError(err)
+
+			// 模拟 Handler 层的路由决策
+			var routedService string
+			if account.Platform == service.PlatformAntigravity {
+				routedService = "AntigravityGatewayService.ForwardGemini"
+			} else {
+				routedService = "GeminiMessagesCompatService.ForwardNative"
+			}
+
+			s.Require().Equal(tt.expectedService, routedService)
+		})
+	}
+}

llm-gateway-competitors/sub2api-tar/backend/internal/repository/gemini_drive_client.go

@@ -0,0 +1,9 @@
+package repository
+
+import "github.com/Wei-Shaw/sub2api/internal/pkg/geminicli"
+
+// NewGeminiDriveClient creates a concrete DriveClient for Google Drive API operations.
+// Returned as geminicli.DriveClient interface for DI (Strategy A).
+func NewGeminiDriveClient() geminicli.DriveClient {
+	return geminicli.NewDriveClient()
+}

llm-gateway-competitors/sub2api-tar/backend/internal/repository/gemini_oauth_client.go

@@ -0,0 +1,125 @@
+package repository
+
+import (
+	"context"
+	"fmt"
+	"net/url"
+	"time"
+
+	"github.com/Wei-Shaw/sub2api/internal/config"
+	"github.com/Wei-Shaw/sub2api/internal/pkg/geminicli"
+	"github.com/Wei-Shaw/sub2api/internal/service"
+
+	"github.com/imroc/req/v3"
+)
+
+type geminiOAuthClient struct {
+	tokenURL string
+	cfg      *config.Config
+}
+
+func NewGeminiOAuthClient(cfg *config.Config) service.GeminiOAuthClient {
+	return &geminiOAuthClient{
+		tokenURL: geminicli.TokenURL,
+		cfg:      cfg,
+	}
+}
+
+func (c *geminiOAuthClient) ExchangeCode(ctx context.Context, oauthType, code, codeVerifier, redirectURI, proxyURL string) (*geminicli.TokenResponse, error) {
+	client, err := createGeminiReqClient(proxyURL)
+	if err != nil {
+		return nil, fmt.Errorf("create HTTP client: %w", err)
+	}
+
+	// Use different OAuth clients based on oauthType:
+	// - code_assist: always use built-in Gemini CLI OAuth client (public)
+	// - google_one: always use built-in Gemini CLI OAuth client (public)
+	// - ai_studio: requires a user-provided OAuth client
+	oauthCfgInput := geminicli.OAuthConfig{
+		ClientID:     c.cfg.Gemini.OAuth.ClientID,
+		ClientSecret: c.cfg.Gemini.OAuth.ClientSecret,
+		Scopes:       c.cfg.Gemini.OAuth.Scopes,
+	}
+	if oauthType == "code_assist" || oauthType == "google_one" {
+		// Force use of built-in Gemini CLI OAuth client
+		oauthCfgInput.ClientID = ""
+		oauthCfgInput.ClientSecret = ""
+	}
+
+	oauthCfg, err := geminicli.EffectiveOAuthConfig(oauthCfgInput, oauthType)
+	if err != nil {
+		return nil, err
+	}
+
+	formData := url.Values{}
+	formData.Set("grant_type", "authorization_code")
+	formData.Set("client_id", oauthCfg.ClientID)
+	formData.Set("client_secret", oauthCfg.ClientSecret)
+	formData.Set("code", code)
+	formData.Set("code_verifier", codeVerifier)
+	formData.Set("redirect_uri", redirectURI)
+
+	var tokenResp geminicli.TokenResponse
+	resp, err := client.R().
+		SetContext(ctx).
+		SetFormDataFromValues(formData).
+		SetSuccessResult(&tokenResp).
+		Post(c.tokenURL)
+	if err != nil {
+		return nil, fmt.Errorf("request failed: %w", err)
+	}
+	if !resp.IsSuccessState() {
+		return nil, fmt.Errorf("token exchange failed: status %d, body: %s", resp.StatusCode, geminicli.SanitizeBodyForLogs(resp.String()))
+	}
+	return &tokenResp, nil
+}
+
+func (c *geminiOAuthClient) RefreshToken(ctx context.Context, oauthType, refreshToken, proxyURL string) (*geminicli.TokenResponse, error) {
+	client, err := createGeminiReqClient(proxyURL)
+	if err != nil {
+		return nil, fmt.Errorf("create HTTP client: %w", err)
+	}
+
+	oauthCfgInput := geminicli.OAuthConfig{
+		ClientID:     c.cfg.Gemini.OAuth.ClientID,
+		ClientSecret: c.cfg.Gemini.OAuth.ClientSecret,
+		Scopes:       c.cfg.Gemini.OAuth.Scopes,
+	}
+	if oauthType == "code_assist" || oauthType == "google_one" {
+		// Force use of built-in Gemini CLI OAuth client
+		oauthCfgInput.ClientID = ""
+		oauthCfgInput.ClientSecret = ""
+	}
+
+	oauthCfg, err := geminicli.EffectiveOAuthConfig(oauthCfgInput, oauthType)
+	if err != nil {
+		return nil, err
+	}
+
+	formData := url.Values{}
+	formData.Set("grant_type", "refresh_token")
+	formData.Set("refresh_token", refreshToken)
+	formData.Set("client_id", oauthCfg.ClientID)
+	formData.Set("client_secret", oauthCfg.ClientSecret)
+
+	var tokenResp geminicli.TokenResponse
+	resp, err := client.R().
+		SetContext(ctx).
+		SetFormDataFromValues(formData).
+		SetSuccessResult(&tokenResp).
+		Post(c.tokenURL)
+	if err != nil {
+		return nil, fmt.Errorf("request failed: %w", err)
+	}
+	if !resp.IsSuccessState() {
+		return nil, fmt.Errorf("token refresh failed: status %d, body: %s", resp.StatusCode, geminicli.SanitizeBodyForLogs(resp.String()))
+	}
+	return &tokenResp, nil
+}
+
+func createGeminiReqClient(proxyURL string) (*req.Client, error) {
+	return getSharedReqClient(reqClientOptions{
+		ProxyURL: proxyURL,
+		Timeout:  60 * time.Second,
+	})
+}

llm-gateway-competitors/sub2api-tar/backend/internal/repository/gemini_token_cache.go

@@ -0,0 +1,49 @@
+package repository
+
+import (
+	"context"
+	"fmt"
+	"time"
+
+	"github.com/Wei-Shaw/sub2api/internal/service"
+
+	"github.com/redis/go-redis/v9"
+)
+
+const (
+	oauthTokenKeyPrefix       = "oauth:token:"
+	oauthRefreshLockKeyPrefix = "oauth:refresh_lock:"
+)
+
+type geminiTokenCache struct {
+	rdb *redis.Client
+}
+
+func NewGeminiTokenCache(rdb *redis.Client) service.GeminiTokenCache {
+	return &geminiTokenCache{rdb: rdb}
+}
+
+func (c *geminiTokenCache) GetAccessToken(ctx context.Context, cacheKey string) (string, error) {
+	key := fmt.Sprintf("%s%s", oauthTokenKeyPrefix, cacheKey)
+	return c.rdb.Get(ctx, key).Result()
+}
+
+func (c *geminiTokenCache) SetAccessToken(ctx context.Context, cacheKey string, token string, ttl time.Duration) error {
+	key := fmt.Sprintf("%s%s", oauthTokenKeyPrefix, cacheKey)
+	return c.rdb.Set(ctx, key, token, ttl).Err()
+}
+
+func (c *geminiTokenCache) DeleteAccessToken(ctx context.Context, cacheKey string) error {
+	key := fmt.Sprintf("%s%s", oauthTokenKeyPrefix, cacheKey)
+	return c.rdb.Del(ctx, key).Err()
+}
+
+func (c *geminiTokenCache) AcquireRefreshLock(ctx context.Context, cacheKey string, ttl time.Duration) (bool, error) {
+	key := fmt.Sprintf("%s%s", oauthRefreshLockKeyPrefix, cacheKey)
+	return c.rdb.SetNX(ctx, key, 1, ttl).Result()
+}
+
+func (c *geminiTokenCache) ReleaseRefreshLock(ctx context.Context, cacheKey string) error {
+	key := fmt.Sprintf("%s%s", oauthRefreshLockKeyPrefix, cacheKey)
+	return c.rdb.Del(ctx, key).Err()
+}

llm-gateway-competitors/sub2api-tar/backend/internal/repository/gemini_token_cache_integration_test.go

@@ -0,0 +1,47 @@
+//go:build integration
+
+package repository
+
+import (
+	"errors"
+	"testing"
+	"time"
+
+	"github.com/Wei-Shaw/sub2api/internal/service"
+	"github.com/redis/go-redis/v9"
+	"github.com/stretchr/testify/require"
+	"github.com/stretchr/testify/suite"
+)
+
+type GeminiTokenCacheSuite struct {
+	IntegrationRedisSuite
+	cache service.GeminiTokenCache
+}
+
+func (s *GeminiTokenCacheSuite) SetupTest() {
+	s.IntegrationRedisSuite.SetupTest()
+	s.cache = NewGeminiTokenCache(s.rdb)
+}
+
+func (s *GeminiTokenCacheSuite) TestDeleteAccessToken() {
+	cacheKey := "project-123"
+	token := "token-value"
+	require.NoError(s.T(), s.cache.SetAccessToken(s.ctx, cacheKey, token, time.Minute))
+
+	got, err := s.cache.GetAccessToken(s.ctx, cacheKey)
+	require.NoError(s.T(), err)
+	require.Equal(s.T(), token, got)
+
+	require.NoError(s.T(), s.cache.DeleteAccessToken(s.ctx, cacheKey))
+
+	_, err = s.cache.GetAccessToken(s.ctx, cacheKey)
+	require.True(s.T(), errors.Is(err, redis.Nil), "expected redis.Nil after delete")
+}
+
+func (s *GeminiTokenCacheSuite) TestDeleteAccessToken_MissingKey() {
+	require.NoError(s.T(), s.cache.DeleteAccessToken(s.ctx, "missing-key"))
+}
+
+func TestGeminiTokenCacheSuite(t *testing.T) {
+	suite.Run(t, new(GeminiTokenCacheSuite))
+}

llm-gateway-competitors/sub2api-tar/backend/internal/repository/gemini_token_cache_test.go

@@ -0,0 +1,28 @@
+//go:build unit
+
+package repository
+
+import (
+	"context"
+	"testing"
+	"time"
+
+	"github.com/redis/go-redis/v9"
+	"github.com/stretchr/testify/require"
+)
+
+func TestGeminiTokenCache_DeleteAccessToken_RedisError(t *testing.T) {
+	rdb := redis.NewClient(&redis.Options{
+		Addr:         "127.0.0.1:1",
+		DialTimeout:  50 * time.Millisecond,
+		ReadTimeout:  50 * time.Millisecond,
+		WriteTimeout: 50 * time.Millisecond,
+	})
+	t.Cleanup(func() {
+		_ = rdb.Close()
+	})
+
+	cache := NewGeminiTokenCache(rdb)
+	err := cache.DeleteAccessToken(context.Background(), "broken")
+	require.Error(t, err)
+}

llm-gateway-competitors/sub2api-tar/backend/internal/repository/geminicli_codeassist_client.go

@@ -0,0 +1,135 @@
+package repository
+
+import (
+	"context"
+	"fmt"
+	"time"
+
+	"github.com/Wei-Shaw/sub2api/internal/pkg/geminicli"
+	"github.com/Wei-Shaw/sub2api/internal/pkg/googleapi"
+	"github.com/Wei-Shaw/sub2api/internal/service"
+
+	"github.com/imroc/req/v3"
+)
+
+type geminiCliCodeAssistClient struct {
+	baseURL string
+}
+
+func NewGeminiCliCodeAssistClient() service.GeminiCliCodeAssistClient {
+	return &geminiCliCodeAssistClient{baseURL: geminicli.GeminiCliBaseURL}
+}
+
+func (c *geminiCliCodeAssistClient) LoadCodeAssist(ctx context.Context, accessToken, proxyURL string, reqBody *geminicli.LoadCodeAssistRequest) (*geminicli.LoadCodeAssistResponse, error) {
+	if reqBody == nil {
+		reqBody = defaultLoadCodeAssistRequest()
+	}
+
+	var out geminicli.LoadCodeAssistResponse
+	client, err := createGeminiCliReqClient(proxyURL)
+	if err != nil {
+		return nil, fmt.Errorf("create HTTP client: %w", err)
+	}
+	resp, err := client.R().
+		SetContext(ctx).
+		SetHeader("Authorization", "Bearer "+accessToken).
+		SetHeader("Content-Type", "application/json").
+		SetHeader("User-Agent", geminicli.GeminiCLIUserAgent).
+		SetBody(reqBody).
+		SetSuccessResult(&out).
+		Post(c.baseURL + "/v1internal:loadCodeAssist")
+	if err != nil {
+		fmt.Printf("[CodeAssist] LoadCodeAssist request error: %v\n", err)
+		return nil, fmt.Errorf("request failed: %w", err)
+	}
+	if !resp.IsSuccessState() {
+		body := resp.String()
+		sanitizedBody := geminicli.SanitizeBodyForLogs(body)
+		fmt.Printf("[CodeAssist] LoadCodeAssist failed: status %d, body: %s\n", resp.StatusCode, sanitizedBody)
+
+		// Check if this is a SERVICE_DISABLED error and extract activation URL
+		if googleapi.IsServiceDisabledError(body) {
+			activationURL := googleapi.ExtractActivationURL(body)
+			if activationURL != "" {
+				return nil, fmt.Errorf("gemini API not enabled for this project, please enable it by visiting: %s\n\nAfter enabling the API, wait a few minutes for the changes to propagate, then try again", activationURL)
+			}
+			return nil, fmt.Errorf("gemini API not enabled for this project, please enable it in the Google Cloud Console at: https://console.cloud.google.com/apis/library/cloudaicompanion.googleapis.com")
+		}
+
+		return nil, fmt.Errorf("loadCodeAssist failed: status %d, body: %s", resp.StatusCode, sanitizedBody)
+	}
+	fmt.Printf("[CodeAssist] LoadCodeAssist success: status %d, response: %+v\n", resp.StatusCode, out)
+	return &out, nil
+}
+
+func (c *geminiCliCodeAssistClient) OnboardUser(ctx context.Context, accessToken, proxyURL string, reqBody *geminicli.OnboardUserRequest) (*geminicli.OnboardUserResponse, error) {
+	if reqBody == nil {
+		reqBody = defaultOnboardUserRequest()
+	}
+
+	fmt.Printf("[CodeAssist] OnboardUser request body: %+v\n", reqBody)
+
+	var out geminicli.OnboardUserResponse
+	client, err := createGeminiCliReqClient(proxyURL)
+	if err != nil {
+		return nil, fmt.Errorf("create HTTP client: %w", err)
+	}
+	resp, err := client.R().
+		SetContext(ctx).
+		SetHeader("Authorization", "Bearer "+accessToken).
+		SetHeader("Content-Type", "application/json").
+		SetHeader("User-Agent", geminicli.GeminiCLIUserAgent).
+		SetBody(reqBody).
+		SetSuccessResult(&out).
+		Post(c.baseURL + "/v1internal:onboardUser")
+	if err != nil {
+		fmt.Printf("[CodeAssist] OnboardUser request error: %v\n", err)
+		return nil, fmt.Errorf("request failed: %w", err)
+	}
+	if !resp.IsSuccessState() {
+		body := resp.String()
+		sanitizedBody := geminicli.SanitizeBodyForLogs(body)
+		fmt.Printf("[CodeAssist] OnboardUser failed: status %d, body: %s\n", resp.StatusCode, sanitizedBody)
+
+		// Check if this is a SERVICE_DISABLED error and extract activation URL
+		if googleapi.IsServiceDisabledError(body) {
+			activationURL := googleapi.ExtractActivationURL(body)
+			if activationURL != "" {
+				return nil, fmt.Errorf("gemini API not enabled for this project, please enable it by visiting: %s\n\nAfter enabling the API, wait a few minutes for the changes to propagate, then try again", activationURL)
+			}
+			return nil, fmt.Errorf("gemini API not enabled for this project, please enable it in the Google Cloud Console at: https://console.cloud.google.com/apis/library/cloudaicompanion.googleapis.com")
+		}
+
+		return nil, fmt.Errorf("onboardUser failed: status %d, body: %s", resp.StatusCode, sanitizedBody)
+	}
+	fmt.Printf("[CodeAssist] OnboardUser success: status %d, response: %+v\n", resp.StatusCode, out)
+	return &out, nil
+}
+
+func createGeminiCliReqClient(proxyURL string) (*req.Client, error) {
+	return getSharedReqClient(reqClientOptions{
+		ProxyURL: proxyURL,
+		Timeout:  30 * time.Second,
+	})
+}
+
+func defaultLoadCodeAssistRequest() *geminicli.LoadCodeAssistRequest {
+	return &geminicli.LoadCodeAssistRequest{
+		Metadata: geminicli.LoadCodeAssistMetadata{
+			IDEType:    "ANTIGRAVITY",
+			Platform:   "PLATFORM_UNSPECIFIED",
+			PluginType: "GEMINI",
+		},
+	}
+}
+
+func defaultOnboardUserRequest() *geminicli.OnboardUserRequest {
+	return &geminicli.OnboardUserRequest{
+		TierID: "LEGACY",
+		Metadata: geminicli.LoadCodeAssistMetadata{
+			IDEType:    "ANTIGRAVITY",
+			Platform:   "PLATFORM_UNSPECIFIED",
+			PluginType: "GEMINI",
+		},
+	}
+}

llm-gateway-competitors/sub2api-tar/backend/internal/repository/github_release_service.go

@@ -0,0 +1,171 @@
+package repository
+
+import (
+	"context"
+	"encoding/json"
+	"fmt"
+	"io"
+	"log/slog"
+	"net/http"
+	"os"
+	"strings"
+	"time"
+
+	"github.com/Wei-Shaw/sub2api/internal/pkg/httpclient"
+	"github.com/Wei-Shaw/sub2api/internal/service"
+)
+
+type githubReleaseClient struct {
+	httpClient         *http.Client
+	downloadHTTPClient *http.Client
+}
+
+type githubReleaseClientError struct {
+	err error
+}
+
+// NewGitHubReleaseClient 创建 GitHub Release 客户端
+// proxyURL 为空时直连 GitHub，支持 http/https/socks5/socks5h 协议
+// 代理配置失败时行为由 allowDirectOnProxyError 控制：
+//   - false（默认）：返回错误占位客户端，禁止回退到直连
+//   - true：回退到直连（仅限管理员显式开启）
+func NewGitHubReleaseClient(proxyURL string, allowDirectOnProxyError bool) service.GitHubReleaseClient {
+	// 安全说明：httpclient.GetClient 的错误链（url.Parse / proxyutil）不含明文代理凭据，
+	// 但仍通过 slog 仅在服务端日志记录，不会暴露给 HTTP 响应。
+	sharedClient, err := httpclient.GetClient(httpclient.Options{
+		Timeout:  30 * time.Second,
+		ProxyURL: proxyURL,
+	})
+	if err != nil {
+		if strings.TrimSpace(proxyURL) != "" && !allowDirectOnProxyError {
+			slog.Warn("proxy client init failed, all requests will fail", "service", "github_release", "error", err)
+			return &githubReleaseClientError{err: fmt.Errorf("proxy client init failed and direct fallback is disabled; set security.proxy_fallback.allow_direct_on_error=true to allow fallback: %w", err)}
+		}
+		sharedClient = &http.Client{Timeout: 30 * time.Second}
+	}
+
+	// 下载客户端需要更长的超时时间
+	downloadClient, err := httpclient.GetClient(httpclient.Options{
+		Timeout:  10 * time.Minute,
+		ProxyURL: proxyURL,
+	})
+	if err != nil {
+		if strings.TrimSpace(proxyURL) != "" && !allowDirectOnProxyError {
+			slog.Warn("proxy download client init failed, all requests will fail", "service", "github_release", "error", err)
+			return &githubReleaseClientError{err: fmt.Errorf("proxy client init failed and direct fallback is disabled; set security.proxy_fallback.allow_direct_on_error=true to allow fallback: %w", err)}
+		}
+		downloadClient = &http.Client{Timeout: 10 * time.Minute}
+	}
+
+	return &githubReleaseClient{
+		httpClient:         sharedClient,
+		downloadHTTPClient: downloadClient,
+	}
+}
+
+func (c *githubReleaseClientError) FetchLatestRelease(ctx context.Context, repo string) (*service.GitHubRelease, error) {
+	return nil, c.err
+}
+
+func (c *githubReleaseClientError) DownloadFile(ctx context.Context, url, dest string, maxSize int64) error {
+	return c.err
+}
+
+func (c *githubReleaseClientError) FetchChecksumFile(ctx context.Context, url string) ([]byte, error) {
+	return nil, c.err
+}
+
+func (c *githubReleaseClient) FetchLatestRelease(ctx context.Context, repo string) (*service.GitHubRelease, error) {
+	url := fmt.Sprintf("https://api.github.com/repos/%s/releases/latest", repo)
+
+	req, err := http.NewRequestWithContext(ctx, http.MethodGet, url, nil)
+	if err != nil {
+		return nil, err
+	}
+	req.Header.Set("Accept", "application/vnd.github.v3+json")
+	req.Header.Set("User-Agent", "Sub2API-Updater")
+
+	resp, err := c.httpClient.Do(req)
+	if err != nil {
+		return nil, err
+	}
+	defer func() { _ = resp.Body.Close() }()
+
+	if resp.StatusCode != http.StatusOK {
+		return nil, fmt.Errorf("GitHub API returned %d", resp.StatusCode)
+	}
+
+	var release service.GitHubRelease
+	if err := json.NewDecoder(resp.Body).Decode(&release); err != nil {
+		return nil, err
+	}
+
+	return &release, nil
+}
+
+func (c *githubReleaseClient) DownloadFile(ctx context.Context, url, dest string, maxSize int64) error {
+	req, err := http.NewRequestWithContext(ctx, http.MethodGet, url, nil)
+	if err != nil {
+		return err
+	}
+
+	// 使用预配置的下载客户端（已包含代理配置）
+	resp, err := c.downloadHTTPClient.Do(req)
+	if err != nil {
+		return err
+	}
+	defer func() { _ = resp.Body.Close() }()
+
+	if resp.StatusCode != http.StatusOK {
+		return fmt.Errorf("download returned %d", resp.StatusCode)
+	}
+
+	// SECURITY: Check Content-Length if available
+	if resp.ContentLength > maxSize {
+		return fmt.Errorf("file too large: %d bytes (max %d)", resp.ContentLength, maxSize)
+	}
+
+	out, err := os.Create(dest)
+	if err != nil {
+		return err
+	}
+
+	// SECURITY: Use LimitReader to enforce max download size even if Content-Length is missing/wrong
+	limited := io.LimitReader(resp.Body, maxSize+1)
+	written, err := io.Copy(out, limited)
+
+	// Close file before attempting to remove (required on Windows)
+	_ = out.Close()
+
+	if err != nil {
+		_ = os.Remove(dest) // Clean up partial file (best-effort)
+		return err
+	}
+
+	// Check if we hit the limit (downloaded more than maxSize)
+	if written > maxSize {
+		_ = os.Remove(dest) // Clean up partial file (best-effort)
+		return fmt.Errorf("download exceeded maximum size of %d bytes", maxSize)
+	}
+
+	return nil
+}
+
+func (c *githubReleaseClient) FetchChecksumFile(ctx context.Context, url string) ([]byte, error) {
+	req, err := http.NewRequestWithContext(ctx, http.MethodGet, url, nil)
+	if err != nil {
+		return nil, err
+	}
+
+	resp, err := c.httpClient.Do(req)
+	if err != nil {
+		return nil, err
+	}
+	defer func() { _ = resp.Body.Close() }()
+
+	if resp.StatusCode != http.StatusOK {
+		return nil, fmt.Errorf("HTTP %d", resp.StatusCode)
+	}
+
+	return io.ReadAll(resp.Body)
+}

llm-gateway-competitors/sub2api-tar/backend/internal/repository/github_release_service_test.go

@@ -0,0 +1,317 @@
+package repository
+
+import (
+	"bytes"
+	"context"
+	"net/http"
+	"net/http/httptest"
+	"os"
+	"path/filepath"
+	"strings"
+	"testing"
+
+	"github.com/stretchr/testify/require"
+	"github.com/stretchr/testify/suite"
+)
+
+type GitHubReleaseServiceSuite struct {
+	suite.Suite
+	srv     *httptest.Server
+	client  *githubReleaseClient
+	tempDir string
+}
+
+// testTransport redirects requests to the test server
+type testTransport struct {
+	testServerURL string
+}
+
+func (t *testTransport) RoundTrip(req *http.Request) (*http.Response, error) {
+	// Rewrite the URL to point to our test server
+	testURL := t.testServerURL + req.URL.Path
+	newReq, err := http.NewRequestWithContext(req.Context(), req.Method, testURL, req.Body)
+	if err != nil {
+		return nil, err
+	}
+	newReq.Header = req.Header
+	return http.DefaultTransport.RoundTrip(newReq)
+}
+
+func newTestGitHubReleaseClient() *githubReleaseClient {
+	return &githubReleaseClient{
+		httpClient:         &http.Client{},
+		downloadHTTPClient: &http.Client{},
+	}
+}
+
+func (s *GitHubReleaseServiceSuite) SetupTest() {
+	s.tempDir = s.T().TempDir()
+}
+
+func (s *GitHubReleaseServiceSuite) TearDownTest() {
+	if s.srv != nil {
+		s.srv.Close()
+		s.srv = nil
+	}
+}
+
+func (s *GitHubReleaseServiceSuite) TestDownloadFile_EnforcesMaxSize_ContentLength() {
+	s.srv = newLocalTestServer(s.T(), http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+		w.Header().Set("Content-Length", "100")
+		w.WriteHeader(http.StatusOK)
+		_, _ = w.Write(bytes.Repeat([]byte("a"), 100))
+	}))
+
+	s.client = newTestGitHubReleaseClient()
+
+	dest := filepath.Join(s.tempDir, "file1.bin")
+	err := s.client.DownloadFile(context.Background(), s.srv.URL, dest, 10)
+	require.Error(s.T(), err, "expected error for oversized download with Content-Length")
+
+	_, statErr := os.Stat(dest)
+	require.Error(s.T(), statErr, "expected file to not exist for rejected download")
+}
+
+func (s *GitHubReleaseServiceSuite) TestDownloadFile_EnforcesMaxSize_Chunked() {
+	s.srv = newLocalTestServer(s.T(), http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+		// Force chunked encoding (unknown Content-Length) by flushing headers before writing.
+		w.WriteHeader(http.StatusOK)
+		if fl, ok := w.(http.Flusher); ok {
+			fl.Flush()
+		}
+		for i := 0; i < 10; i++ {
+			_, _ = w.Write(bytes.Repeat([]byte("b"), 10))
+			if fl, ok := w.(http.Flusher); ok {
+				fl.Flush()
+			}
+		}
+	}))
+
+	s.client = newTestGitHubReleaseClient()
+
+	dest := filepath.Join(s.tempDir, "file2.bin")
+	err := s.client.DownloadFile(context.Background(), s.srv.URL, dest, 10)
+	require.Error(s.T(), err, "expected error for oversized chunked download")
+
+	_, statErr := os.Stat(dest)
+	require.Error(s.T(), statErr, "expected file to be cleaned up for oversized chunked download")
+}
+
+func (s *GitHubReleaseServiceSuite) TestDownloadFile_Success() {
+	s.srv = newLocalTestServer(s.T(), http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+		w.WriteHeader(http.StatusOK)
+		if fl, ok := w.(http.Flusher); ok {
+			fl.Flush()
+		}
+		for i := 0; i < 10; i++ {
+			_, _ = w.Write(bytes.Repeat([]byte("b"), 10))
+			if fl, ok := w.(http.Flusher); ok {
+				fl.Flush()
+			}
+		}
+	}))
+
+	s.client = newTestGitHubReleaseClient()
+
+	dest := filepath.Join(s.tempDir, "file3.bin")
+	err := s.client.DownloadFile(context.Background(), s.srv.URL, dest, 200)
+	require.NoError(s.T(), err, "expected success")
+
+	b, err := os.ReadFile(dest)
+	require.NoError(s.T(), err, "read")
+	require.True(s.T(), strings.HasPrefix(string(b), "b"), "downloaded content should start with 'b'")
+	require.Len(s.T(), b, 100, "downloaded content length mismatch")
+}
+
+func (s *GitHubReleaseServiceSuite) TestDownloadFile_404() {
+	s.srv = newLocalTestServer(s.T(), http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+		w.WriteHeader(http.StatusNotFound)
+	}))
+
+	s.client = newTestGitHubReleaseClient()
+
+	dest := filepath.Join(s.tempDir, "notfound.bin")
+	err := s.client.DownloadFile(context.Background(), s.srv.URL, dest, 100)
+	require.Error(s.T(), err, "expected error for 404")
+
+	_, statErr := os.Stat(dest)
+	require.Error(s.T(), statErr, "expected file to not exist for 404")
+}
+
+func (s *GitHubReleaseServiceSuite) TestFetchChecksumFile_Success() {
+	s.srv = newLocalTestServer(s.T(), http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+		w.WriteHeader(http.StatusOK)
+		_, _ = w.Write([]byte("sum"))
+	}))
+
+	s.client = newTestGitHubReleaseClient()
+
+	body, err := s.client.FetchChecksumFile(context.Background(), s.srv.URL)
+	require.NoError(s.T(), err, "FetchChecksumFile")
+	require.Equal(s.T(), "sum", string(body), "checksum body mismatch")
+}
+
+func (s *GitHubReleaseServiceSuite) TestFetchChecksumFile_Non200() {
+	s.srv = newLocalTestServer(s.T(), http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+		w.WriteHeader(http.StatusInternalServerError)
+	}))
+
+	s.client = newTestGitHubReleaseClient()
+
+	_, err := s.client.FetchChecksumFile(context.Background(), s.srv.URL)
+	require.Error(s.T(), err, "expected error for non-200")
+}
+
+func (s *GitHubReleaseServiceSuite) TestDownloadFile_ContextCancel() {
+	s.srv = newLocalTestServer(s.T(), http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+		<-r.Context().Done()
+	}))
+
+	s.client = newTestGitHubReleaseClient()
+
+	ctx, cancel := context.WithCancel(context.Background())
+	cancel()
+
+	dest := filepath.Join(s.tempDir, "cancelled.bin")
+	err := s.client.DownloadFile(ctx, s.srv.URL, dest, 100)
+	require.Error(s.T(), err, "expected error for cancelled context")
+}
+
+func (s *GitHubReleaseServiceSuite) TestDownloadFile_InvalidURL() {
+	s.client = newTestGitHubReleaseClient()
+
+	dest := filepath.Join(s.tempDir, "invalid.bin")
+	err := s.client.DownloadFile(context.Background(), "://invalid-url", dest, 100)
+	require.Error(s.T(), err, "expected error for invalid URL")
+}
+
+func (s *GitHubReleaseServiceSuite) TestDownloadFile_InvalidDestPath() {
+	s.srv = newLocalTestServer(s.T(), http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+		w.WriteHeader(http.StatusOK)
+		_, _ = w.Write([]byte("content"))
+	}))
+
+	s.client = newTestGitHubReleaseClient()
+
+	// Use a path that cannot be created (directory doesn't exist)
+	dest := filepath.Join(s.tempDir, "nonexistent", "subdir", "file.bin")
+	err := s.client.DownloadFile(context.Background(), s.srv.URL, dest, 100)
+	require.Error(s.T(), err, "expected error for invalid destination path")
+}
+
+func (s *GitHubReleaseServiceSuite) TestFetchChecksumFile_InvalidURL() {
+	s.client = newTestGitHubReleaseClient()
+
+	_, err := s.client.FetchChecksumFile(context.Background(), "://invalid-url")
+	require.Error(s.T(), err, "expected error for invalid URL")
+}
+
+func (s *GitHubReleaseServiceSuite) TestFetchLatestRelease_Success() {
+	releaseJSON := `{
+		"tag_name": "v1.0.0",
+		"name": "Release 1.0.0",
+		"body": "Release notes",
+		"html_url": "https://github.com/test/repo/releases/v1.0.0",
+		"assets": [
+			{
+				"name": "app-linux-amd64.tar.gz",
+				"browser_download_url": "https://github.com/test/repo/releases/download/v1.0.0/app-linux-amd64.tar.gz"
+			}
+		]
+	}`
+
+	s.srv = newLocalTestServer(s.T(), http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+		require.Equal(s.T(), "/repos/test/repo/releases/latest", r.URL.Path)
+		require.Equal(s.T(), "application/vnd.github.v3+json", r.Header.Get("Accept"))
+		require.Equal(s.T(), "Sub2API-Updater", r.Header.Get("User-Agent"))
+		w.Header().Set("Content-Type", "application/json")
+		w.WriteHeader(http.StatusOK)
+		_, _ = w.Write([]byte(releaseJSON))
+	}))
+
+	// Use custom transport to redirect requests to test server
+	s.client = &githubReleaseClient{
+		httpClient: &http.Client{
+			Transport: &testTransport{testServerURL: s.srv.URL},
+		},
+		downloadHTTPClient: &http.Client{},
+	}
+
+	release, err := s.client.FetchLatestRelease(context.Background(), "test/repo")
+	require.NoError(s.T(), err)
+	require.Equal(s.T(), "v1.0.0", release.TagName)
+	require.Equal(s.T(), "Release 1.0.0", release.Name)
+	require.Len(s.T(), release.Assets, 1)
+	require.Equal(s.T(), "app-linux-amd64.tar.gz", release.Assets[0].Name)
+}
+
+func (s *GitHubReleaseServiceSuite) TestFetchLatestRelease_Non200() {
+	s.srv = newLocalTestServer(s.T(), http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+		w.WriteHeader(http.StatusNotFound)
+	}))
+
+	s.client = &githubReleaseClient{
+		httpClient: &http.Client{
+			Transport: &testTransport{testServerURL: s.srv.URL},
+		},
+		downloadHTTPClient: &http.Client{},
+	}
+
+	_, err := s.client.FetchLatestRelease(context.Background(), "test/repo")
+	require.Error(s.T(), err)
+	require.Contains(s.T(), err.Error(), "404")
+}
+
+func (s *GitHubReleaseServiceSuite) TestFetchLatestRelease_InvalidJSON() {
+	s.srv = newLocalTestServer(s.T(), http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+		w.WriteHeader(http.StatusOK)
+		_, _ = w.Write([]byte("not valid json"))
+	}))
+
+	s.client = &githubReleaseClient{
+		httpClient: &http.Client{
+			Transport: &testTransport{testServerURL: s.srv.URL},
+		},
+		downloadHTTPClient: &http.Client{},
+	}
+
+	_, err := s.client.FetchLatestRelease(context.Background(), "test/repo")
+	require.Error(s.T(), err)
+}
+
+func (s *GitHubReleaseServiceSuite) TestFetchLatestRelease_ContextCancel() {
+	s.srv = newLocalTestServer(s.T(), http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+		<-r.Context().Done()
+	}))
+
+	s.client = &githubReleaseClient{
+		httpClient: &http.Client{
+			Transport: &testTransport{testServerURL: s.srv.URL},
+		},
+		downloadHTTPClient: &http.Client{},
+	}
+
+	ctx, cancel := context.WithCancel(context.Background())
+	cancel()
+
+	_, err := s.client.FetchLatestRelease(ctx, "test/repo")
+	require.Error(s.T(), err)
+}
+
+func (s *GitHubReleaseServiceSuite) TestFetchChecksumFile_ContextCancel() {
+	s.srv = newLocalTestServer(s.T(), http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+		<-r.Context().Done()
+	}))
+
+	s.client = newTestGitHubReleaseClient()
+
+	ctx, cancel := context.WithCancel(context.Background())
+	cancel()
+
+	_, err := s.client.FetchChecksumFile(ctx, s.srv.URL)
+	require.Error(s.T(), err)
+}
+
+func TestGitHubReleaseServiceSuite(t *testing.T) {
+	suite.Run(t, new(GitHubReleaseServiceSuite))
+}

llm-gateway-competitors/sub2api-tar/backend/internal/repository/group_repo.go

@@ -0,0 +1,671 @@
+package repository
+
+import (
+	"context"
+	"database/sql"
+	"errors"
+	"fmt"
+	"strings"
+
+	dbent "github.com/Wei-Shaw/sub2api/ent"
+	"github.com/Wei-Shaw/sub2api/ent/apikey"
+	"github.com/Wei-Shaw/sub2api/ent/group"
+	"github.com/Wei-Shaw/sub2api/internal/pkg/logger"
+	"github.com/Wei-Shaw/sub2api/internal/pkg/pagination"
+	"github.com/Wei-Shaw/sub2api/internal/service"
+	"github.com/lib/pq"
+)
+
+type sqlExecutor interface {
+	ExecContext(ctx context.Context, query string, args ...any) (sql.Result, error)
+	QueryContext(ctx context.Context, query string, args ...any) (*sql.Rows, error)
+}
+
+type groupRepository struct {
+	client *dbent.Client
+	sql    sqlExecutor
+}
+
+func NewGroupRepository(client *dbent.Client, sqlDB *sql.DB) service.GroupRepository {
+	return newGroupRepositoryWithSQL(client, sqlDB)
+}
+
+func newGroupRepositoryWithSQL(client *dbent.Client, sqlq sqlExecutor) *groupRepository {
+	return &groupRepository{client: client, sql: sqlq}
+}
+
+func (r *groupRepository) Create(ctx context.Context, groupIn *service.Group) error {
+	builder := r.client.Group.Create().
+		SetName(groupIn.Name).
+		SetDescription(groupIn.Description).
+		SetPlatform(groupIn.Platform).
+		SetRateMultiplier(groupIn.RateMultiplier).
+		SetIsExclusive(groupIn.IsExclusive).
+		SetStatus(groupIn.Status).
+		SetSubscriptionType(groupIn.SubscriptionType).
+		SetNillableDailyLimitUsd(groupIn.DailyLimitUSD).
+		SetNillableWeeklyLimitUsd(groupIn.WeeklyLimitUSD).
+		SetNillableMonthlyLimitUsd(groupIn.MonthlyLimitUSD).
+		SetNillableImagePrice1k(groupIn.ImagePrice1K).
+		SetNillableImagePrice2k(groupIn.ImagePrice2K).
+		SetNillableImagePrice4k(groupIn.ImagePrice4K).
+		SetNillableSoraImagePrice360(groupIn.SoraImagePrice360).
+		SetNillableSoraImagePrice540(groupIn.SoraImagePrice540).
+		SetNillableSoraVideoPricePerRequest(groupIn.SoraVideoPricePerRequest).
+		SetNillableSoraVideoPricePerRequestHd(groupIn.SoraVideoPricePerRequestHD).
+		SetDefaultValidityDays(groupIn.DefaultValidityDays).
+		SetClaudeCodeOnly(groupIn.ClaudeCodeOnly).
+		SetNillableFallbackGroupID(groupIn.FallbackGroupID).
+		SetNillableFallbackGroupIDOnInvalidRequest(groupIn.FallbackGroupIDOnInvalidRequest).
+		SetModelRoutingEnabled(groupIn.ModelRoutingEnabled).
+		SetMcpXMLInject(groupIn.MCPXMLInject).
+		SetSoraStorageQuotaBytes(groupIn.SoraStorageQuotaBytes).
+		SetAllowMessagesDispatch(groupIn.AllowMessagesDispatch).
+		SetDefaultMappedModel(groupIn.DefaultMappedModel)
+
+	// 设置模型路由配置
+	if groupIn.ModelRouting != nil {
+		builder = builder.SetModelRouting(groupIn.ModelRouting)
+	}
+
+	// 设置支持的模型系列（始终设置，空数组表示不限制）
+	builder = builder.SetSupportedModelScopes(groupIn.SupportedModelScopes)
+
+	created, err := builder.Save(ctx)
+	if err == nil {
+		groupIn.ID = created.ID
+		groupIn.CreatedAt = created.CreatedAt
+		groupIn.UpdatedAt = created.UpdatedAt
+		if err := enqueueSchedulerOutbox(ctx, r.sql, service.SchedulerOutboxEventGroupChanged, nil, &groupIn.ID, nil); err != nil {
+			logger.LegacyPrintf("repository.group", "[SchedulerOutbox] enqueue group create failed: group=%d err=%v", groupIn.ID, err)
+		}
+	}
+	return translatePersistenceError(err, nil, service.ErrGroupExists)
+}
+
+func (r *groupRepository) GetByID(ctx context.Context, id int64) (*service.Group, error) {
+	out, err := r.GetByIDLite(ctx, id)
+	if err != nil {
+		return nil, err
+	}
+	count, _ := r.GetAccountCount(ctx, out.ID)
+	out.AccountCount = count
+	return out, nil
+}
+
+func (r *groupRepository) GetByIDLite(ctx context.Context, id int64) (*service.Group, error) {
+	// AccountCount is intentionally not loaded here; use GetByID when needed.
+	m, err := r.client.Group.Query().
+		Where(group.IDEQ(id)).
+		Only(ctx)
+	if err != nil {
+		return nil, translatePersistenceError(err, service.ErrGroupNotFound, nil)
+	}
+	return groupEntityToService(m), nil
+}
+
+func (r *groupRepository) Update(ctx context.Context, groupIn *service.Group) error {
+	builder := r.client.Group.UpdateOneID(groupIn.ID).
+		SetName(groupIn.Name).
+		SetDescription(groupIn.Description).
+		SetPlatform(groupIn.Platform).
+		SetRateMultiplier(groupIn.RateMultiplier).
+		SetIsExclusive(groupIn.IsExclusive).
+		SetStatus(groupIn.Status).
+		SetSubscriptionType(groupIn.SubscriptionType).
+		SetNillableDailyLimitUsd(groupIn.DailyLimitUSD).
+		SetNillableWeeklyLimitUsd(groupIn.WeeklyLimitUSD).
+		SetNillableMonthlyLimitUsd(groupIn.MonthlyLimitUSD).
+		SetNillableImagePrice1k(groupIn.ImagePrice1K).
+		SetNillableImagePrice2k(groupIn.ImagePrice2K).
+		SetNillableImagePrice4k(groupIn.ImagePrice4K).
+		SetNillableSoraImagePrice360(groupIn.SoraImagePrice360).
+		SetNillableSoraImagePrice540(groupIn.SoraImagePrice540).
+		SetNillableSoraVideoPricePerRequest(groupIn.SoraVideoPricePerRequest).
+		SetNillableSoraVideoPricePerRequestHd(groupIn.SoraVideoPricePerRequestHD).
+		SetDefaultValidityDays(groupIn.DefaultValidityDays).
+		SetClaudeCodeOnly(groupIn.ClaudeCodeOnly).
+		SetModelRoutingEnabled(groupIn.ModelRoutingEnabled).
+		SetMcpXMLInject(groupIn.MCPXMLInject).
+		SetSoraStorageQuotaBytes(groupIn.SoraStorageQuotaBytes).
+		SetAllowMessagesDispatch(groupIn.AllowMessagesDispatch).
+		SetDefaultMappedModel(groupIn.DefaultMappedModel)
+
+	// 显式处理可空字段：nil 需要 clear，非 nil 需要 set。
+	if groupIn.DailyLimitUSD != nil {
+		builder = builder.SetDailyLimitUsd(*groupIn.DailyLimitUSD)
+	} else {
+		builder = builder.ClearDailyLimitUsd()
+	}
+	if groupIn.WeeklyLimitUSD != nil {
+		builder = builder.SetWeeklyLimitUsd(*groupIn.WeeklyLimitUSD)
+	} else {
+		builder = builder.ClearWeeklyLimitUsd()
+	}
+	if groupIn.MonthlyLimitUSD != nil {
+		builder = builder.SetMonthlyLimitUsd(*groupIn.MonthlyLimitUSD)
+	} else {
+		builder = builder.ClearMonthlyLimitUsd()
+	}
+	if groupIn.ImagePrice1K != nil {
+		builder = builder.SetImagePrice1k(*groupIn.ImagePrice1K)
+	} else {
+		builder = builder.ClearImagePrice1k()
+	}
+	if groupIn.ImagePrice2K != nil {
+		builder = builder.SetImagePrice2k(*groupIn.ImagePrice2K)
+	} else {
+		builder = builder.ClearImagePrice2k()
+	}
+	if groupIn.ImagePrice4K != nil {
+		builder = builder.SetImagePrice4k(*groupIn.ImagePrice4K)
+	} else {
+		builder = builder.ClearImagePrice4k()
+	}
+
+	// 处理 FallbackGroupID：nil 时清除，否则设置
+	if groupIn.FallbackGroupID != nil {
+		builder = builder.SetFallbackGroupID(*groupIn.FallbackGroupID)
+	} else {
+		builder = builder.ClearFallbackGroupID()
+	}
+	// 处理 FallbackGroupIDOnInvalidRequest：nil 时清除，否则设置
+	if groupIn.FallbackGroupIDOnInvalidRequest != nil {
+		builder = builder.SetFallbackGroupIDOnInvalidRequest(*groupIn.FallbackGroupIDOnInvalidRequest)
+	} else {
+		builder = builder.ClearFallbackGroupIDOnInvalidRequest()
+	}
+
+	// 处理 ModelRouting：nil 时清除，否则设置
+	if groupIn.ModelRouting != nil {
+		builder = builder.SetModelRouting(groupIn.ModelRouting)
+	} else {
+		builder = builder.ClearModelRouting()
+	}
+
+	// 处理 SupportedModelScopes（始终设置，空数组表示不限制）
+	builder = builder.SetSupportedModelScopes(groupIn.SupportedModelScopes)
+
+	updated, err := builder.Save(ctx)
+	if err != nil {
+		return translatePersistenceError(err, service.ErrGroupNotFound, service.ErrGroupExists)
+	}
+	groupIn.UpdatedAt = updated.UpdatedAt
+	if err := enqueueSchedulerOutbox(ctx, r.sql, service.SchedulerOutboxEventGroupChanged, nil, &groupIn.ID, nil); err != nil {
+		logger.LegacyPrintf("repository.group", "[SchedulerOutbox] enqueue group update failed: group=%d err=%v", groupIn.ID, err)
+	}
+	return nil
+}
+
+func (r *groupRepository) Delete(ctx context.Context, id int64) error {
+	_, err := r.client.Group.Delete().Where(group.IDEQ(id)).Exec(ctx)
+	if err != nil {
+		return translatePersistenceError(err, service.ErrGroupNotFound, nil)
+	}
+	if err := enqueueSchedulerOutbox(ctx, r.sql, service.SchedulerOutboxEventGroupChanged, nil, &id, nil); err != nil {
+		logger.LegacyPrintf("repository.group", "[SchedulerOutbox] enqueue group delete failed: group=%d err=%v", id, err)
+	}
+	return nil
+}
+
+func (r *groupRepository) List(ctx context.Context, params pagination.PaginationParams) ([]service.Group, *pagination.PaginationResult, error) {
+	return r.ListWithFilters(ctx, params, "", "", "", nil)
+}
+
+func (r *groupRepository) ListWithFilters(ctx context.Context, params pagination.PaginationParams, platform, status, search string, isExclusive *bool) ([]service.Group, *pagination.PaginationResult, error) {
+	q := r.client.Group.Query()
+
+	if platform != "" {
+		q = q.Where(group.PlatformEQ(platform))
+	}
+	if status != "" {
+		q = q.Where(group.StatusEQ(status))
+	}
+	if search != "" {
+		q = q.Where(group.Or(
+			group.NameContainsFold(search),
+			group.DescriptionContainsFold(search),
+		))
+	}
+	if isExclusive != nil {
+		q = q.Where(group.IsExclusiveEQ(*isExclusive))
+	}
+
+	total, err := q.Clone().Count(ctx)
+	if err != nil {
+		return nil, nil, err
+	}
+
+	groups, err := q.
+		Offset(params.Offset()).
+		Limit(params.Limit()).
+		Order(dbent.Asc(group.FieldSortOrder), dbent.Asc(group.FieldID)).
+		All(ctx)
+	if err != nil {
+		return nil, nil, err
+	}
+
+	groupIDs := make([]int64, 0, len(groups))
+	outGroups := make([]service.Group, 0, len(groups))
+	for i := range groups {
+		g := groupEntityToService(groups[i])
+		outGroups = append(outGroups, *g)
+		groupIDs = append(groupIDs, g.ID)
+	}
+
+	counts, err := r.loadAccountCounts(ctx, groupIDs)
+	if err == nil {
+		for i := range outGroups {
+			outGroups[i].AccountCount = counts[outGroups[i].ID]
+		}
+	}
+
+	return outGroups, paginationResultFromTotal(int64(total), params), nil
+}
+
+func (r *groupRepository) ListActive(ctx context.Context) ([]service.Group, error) {
+	groups, err := r.client.Group.Query().
+		Where(group.StatusEQ(service.StatusActive)).
+		Order(dbent.Asc(group.FieldSortOrder), dbent.Asc(group.FieldID)).
+		All(ctx)
+	if err != nil {
+		return nil, err
+	}
+
+	groupIDs := make([]int64, 0, len(groups))
+	outGroups := make([]service.Group, 0, len(groups))
+	for i := range groups {
+		g := groupEntityToService(groups[i])
+		outGroups = append(outGroups, *g)
+		groupIDs = append(groupIDs, g.ID)
+	}
+
+	counts, err := r.loadAccountCounts(ctx, groupIDs)
+	if err == nil {
+		for i := range outGroups {
+			outGroups[i].AccountCount = counts[outGroups[i].ID]
+		}
+	}
+
+	return outGroups, nil
+}
+
+func (r *groupRepository) ListActiveByPlatform(ctx context.Context, platform string) ([]service.Group, error) {
+	groups, err := r.client.Group.Query().
+		Where(group.StatusEQ(service.StatusActive), group.PlatformEQ(platform)).
+		Order(dbent.Asc(group.FieldSortOrder), dbent.Asc(group.FieldID)).
+		All(ctx)
+	if err != nil {
+		return nil, err
+	}
+
+	groupIDs := make([]int64, 0, len(groups))
+	outGroups := make([]service.Group, 0, len(groups))
+	for i := range groups {
+		g := groupEntityToService(groups[i])
+		outGroups = append(outGroups, *g)
+		groupIDs = append(groupIDs, g.ID)
+	}
+
+	counts, err := r.loadAccountCounts(ctx, groupIDs)
+	if err == nil {
+		for i := range outGroups {
+			outGroups[i].AccountCount = counts[outGroups[i].ID]
+		}
+	}
+
+	return outGroups, nil
+}
+
+func (r *groupRepository) ExistsByName(ctx context.Context, name string) (bool, error) {
+	return r.client.Group.Query().Where(group.NameEQ(name)).Exist(ctx)
+}
+
+// ExistsByIDs 批量检查分组是否存在（仅检查未软删除记录）。
+// 返回结构：map[groupID]exists。
+func (r *groupRepository) ExistsByIDs(ctx context.Context, ids []int64) (map[int64]bool, error) {
+	result := make(map[int64]bool, len(ids))
+	if len(ids) == 0 {
+		return result, nil
+	}
+
+	uniqueIDs := make([]int64, 0, len(ids))
+	seen := make(map[int64]struct{}, len(ids))
+	for _, id := range ids {
+		if id <= 0 {
+			continue
+		}
+		if _, ok := seen[id]; ok {
+			continue
+		}
+		seen[id] = struct{}{}
+		uniqueIDs = append(uniqueIDs, id)
+		result[id] = false
+	}
+	if len(uniqueIDs) == 0 {
+		return result, nil
+	}
+
+	rows, err := r.sql.QueryContext(ctx, `
+		SELECT id
+		FROM groups
+		WHERE id = ANY($1) AND deleted_at IS NULL
+	`, pq.Array(uniqueIDs))
+	if err != nil {
+		return nil, err
+	}
+	defer func() { _ = rows.Close() }()
+
+	for rows.Next() {
+		var id int64
+		if err := rows.Scan(&id); err != nil {
+			return nil, err
+		}
+		result[id] = true
+	}
+	if err := rows.Err(); err != nil {
+		return nil, err
+	}
+	return result, nil
+}
+
+func (r *groupRepository) GetAccountCount(ctx context.Context, groupID int64) (int64, error) {
+	var count int64
+	if err := scanSingleRow(ctx, r.sql, "SELECT COUNT(*) FROM account_groups WHERE group_id = $1", []any{groupID}, &count); err != nil {
+		return 0, err
+	}
+	return count, nil
+}
+
+func (r *groupRepository) DeleteAccountGroupsByGroupID(ctx context.Context, groupID int64) (int64, error) {
+	res, err := r.sql.ExecContext(ctx, "DELETE FROM account_groups WHERE group_id = $1", groupID)
+	if err != nil {
+		return 0, err
+	}
+	affected, _ := res.RowsAffected()
+	if err := enqueueSchedulerOutbox(ctx, r.sql, service.SchedulerOutboxEventGroupChanged, nil, &groupID, nil); err != nil {
+		logger.LegacyPrintf("repository.group", "[SchedulerOutbox] enqueue group account clear failed: group=%d err=%v", groupID, err)
+	}
+	return affected, nil
+}
+
+func (r *groupRepository) DeleteCascade(ctx context.Context, id int64) ([]int64, error) {
+	g, err := r.client.Group.Query().Where(group.IDEQ(id)).Only(ctx)
+	if err != nil {
+		return nil, translatePersistenceError(err, service.ErrGroupNotFound, nil)
+	}
+	groupSvc := groupEntityToService(g)
+
+	// 使用 ent 事务统一包裹：避免手工基于 *sql.Tx 构造 ent client 带来的驱动断言问题，
+	// 同时保证级联删除的原子性。
+	tx, err := r.client.Tx(ctx)
+	if err != nil && !errors.Is(err, dbent.ErrTxStarted) {
+		return nil, err
+	}
+	exec := r.client
+	txClient := r.client
+	if err == nil {
+		defer func() { _ = tx.Rollback() }()
+		exec = tx.Client()
+		txClient = exec
+	}
+	// err 为 dbent.ErrTxStarted 时，复用当前 client 参与同一事务。
+
+	// Lock the group row to avoid concurrent writes while we cascade.
+	// 这里使用 exec.QueryContext 手动扫描，确保同一事务内加锁并能区分"未找到"与其他错误。
+	rows, err := exec.QueryContext(ctx, "SELECT id FROM groups WHERE id = $1 AND deleted_at IS NULL FOR UPDATE", id)
+	if err != nil {
+		return nil, err
+	}
+	var lockedID int64
+	if rows.Next() {
+		if err := rows.Scan(&lockedID); err != nil {
+			_ = rows.Close()
+			return nil, err
+		}
+	}
+	if err := rows.Close(); err != nil {
+		return nil, err
+	}
+	if err := rows.Err(); err != nil {
+		return nil, err
+	}
+	if lockedID == 0 {
+		return nil, service.ErrGroupNotFound
+	}
+
+	var affectedUserIDs []int64
+	if groupSvc.IsSubscriptionType() {
+		// 只查询未软删除的订阅，避免通知已取消订阅的用户
+		rows, err := exec.QueryContext(ctx, "SELECT user_id FROM user_subscriptions WHERE group_id = $1 AND deleted_at IS NULL", id)
+		if err != nil {
+			return nil, err
+		}
+		for rows.Next() {
+			var userID int64
+			if scanErr := rows.Scan(&userID); scanErr != nil {
+				_ = rows.Close()
+				return nil, scanErr
+			}
+			affectedUserIDs = append(affectedUserIDs, userID)
+		}
+		if err := rows.Close(); err != nil {
+			return nil, err
+		}
+		if err := rows.Err(); err != nil {
+			return nil, err
+		}
+
+		// 软删除订阅：设置 deleted_at 而非硬删除
+		if _, err := exec.ExecContext(ctx, "UPDATE user_subscriptions SET deleted_at = NOW() WHERE group_id = $1 AND deleted_at IS NULL", id); err != nil {
+			return nil, err
+		}
+	}
+
+	// 2. Clear group_id for api keys bound to this group.
+	// 仅更新未软删除的记录，避免修改已删除数据，保证审计与历史回溯一致性。
+	// 与 APIKeyRepository 的软删除语义保持一致，减少跨模块行为差异。
+	if _, err := txClient.APIKey.Update().
+		Where(apikey.GroupIDEQ(id), apikey.DeletedAtIsNil()).
+		ClearGroupID().
+		Save(ctx); err != nil {
+		return nil, err
+	}
+
+	// 3. Remove the group id from user_allowed_groups join table.
+	// Legacy users.allowed_groups 列已弃用，不再同步。
+	if _, err := exec.ExecContext(ctx, "DELETE FROM user_allowed_groups WHERE group_id = $1", id); err != nil {
+		return nil, err
+	}
+
+	// 4. Delete account_groups join rows.
+	if _, err := exec.ExecContext(ctx, "DELETE FROM account_groups WHERE group_id = $1", id); err != nil {
+		return nil, err
+	}
+
+	// 5. Soft-delete group itself.
+	if _, err := txClient.Group.Delete().Where(group.IDEQ(id)).Exec(ctx); err != nil {
+		return nil, err
+	}
+
+	if tx != nil {
+		if err := tx.Commit(); err != nil {
+			return nil, err
+		}
+	}
+	if err := enqueueSchedulerOutbox(ctx, r.sql, service.SchedulerOutboxEventGroupChanged, nil, &id, nil); err != nil {
+		logger.LegacyPrintf("repository.group", "[SchedulerOutbox] enqueue group cascade delete failed: group=%d err=%v", id, err)
+	}
+
+	return affectedUserIDs, nil
+}
+
+func (r *groupRepository) loadAccountCounts(ctx context.Context, groupIDs []int64) (counts map[int64]int64, err error) {
+	counts = make(map[int64]int64, len(groupIDs))
+	if len(groupIDs) == 0 {
+		return counts, nil
+	}
+
+	rows, err := r.sql.QueryContext(
+		ctx,
+		"SELECT group_id, COUNT(*) FROM account_groups WHERE group_id = ANY($1) GROUP BY group_id",
+		pq.Array(groupIDs),
+	)
+	if err != nil {
+		return nil, err
+	}
+	defer func() {
+		if closeErr := rows.Close(); closeErr != nil && err == nil {
+			err = closeErr
+			counts = nil
+		}
+	}()
+
+	for rows.Next() {
+		var groupID int64
+		var count int64
+		if err = rows.Scan(&groupID, &count); err != nil {
+			return nil, err
+		}
+		counts[groupID] = count
+	}
+	if err = rows.Err(); err != nil {
+		return nil, err
+	}
+
+	return counts, nil
+}
+
+// GetAccountIDsByGroupIDs 获取多个分组的所有账号 ID（去重）
+func (r *groupRepository) GetAccountIDsByGroupIDs(ctx context.Context, groupIDs []int64) ([]int64, error) {
+	if len(groupIDs) == 0 {
+		return nil, nil
+	}
+
+	rows, err := r.sql.QueryContext(
+		ctx,
+		"SELECT DISTINCT account_id FROM account_groups WHERE group_id = ANY($1) ORDER BY account_id",
+		pq.Array(groupIDs),
+	)
+	if err != nil {
+		return nil, err
+	}
+	defer func() { _ = rows.Close() }()
+
+	var accountIDs []int64
+	for rows.Next() {
+		var accountID int64
+		if err := rows.Scan(&accountID); err != nil {
+			return nil, err
+		}
+		accountIDs = append(accountIDs, accountID)
+	}
+	if err := rows.Err(); err != nil {
+		return nil, err
+	}
+
+	return accountIDs, nil
+}
+
+// BindAccountsToGroup 将多个账号绑定到指定分组（批量插入，忽略已存在的绑定）
+func (r *groupRepository) BindAccountsToGroup(ctx context.Context, groupID int64, accountIDs []int64) error {
+	if len(accountIDs) == 0 {
+		return nil
+	}
+
+	// 使用 INSERT ... ON CONFLICT DO NOTHING 忽略已存在的绑定
+	_, err := r.sql.ExecContext(
+		ctx,
+		`INSERT INTO account_groups (account_id, group_id, priority, created_at)
+		 SELECT unnest($1::bigint[]), $2, 50, NOW()
+		 ON CONFLICT (account_id, group_id) DO NOTHING`,
+		pq.Array(accountIDs),
+		groupID,
+	)
+	if err != nil {
+		return err
+	}
+
+	// 发送调度器事件
+	if err := enqueueSchedulerOutbox(ctx, r.sql, service.SchedulerOutboxEventGroupChanged, nil, &groupID, nil); err != nil {
+		logger.LegacyPrintf("repository.group", "[SchedulerOutbox] enqueue bind accounts to group failed: group=%d err=%v", groupID, err)
+	}
+
+	return nil
+}
+
+// UpdateSortOrders 批量更新分组排序
+func (r *groupRepository) UpdateSortOrders(ctx context.Context, updates []service.GroupSortOrderUpdate) error {
+	if len(updates) == 0 {
+		return nil
+	}
+
+	// 去重后保留最后一次排序值，避免重复 ID 造成 CASE 分支冲突。
+	sortOrderByID := make(map[int64]int, len(updates))
+	groupIDs := make([]int64, 0, len(updates))
+	for _, u := range updates {
+		if u.ID <= 0 {
+			continue
+		}
+		if _, exists := sortOrderByID[u.ID]; !exists {
+			groupIDs = append(groupIDs, u.ID)
+		}
+		sortOrderByID[u.ID] = u.SortOrder
+	}
+	if len(groupIDs) == 0 {
+		return nil
+	}
+
+	// 与旧实现保持一致：任何不存在/已删除的分组都返回 not found，且不执行更新。
+	var existingCount int
+	if err := scanSingleRow(
+		ctx,
+		r.sql,
+		`SELECT COUNT(*) FROM groups WHERE deleted_at IS NULL AND id = ANY($1)`,
+		[]any{pq.Array(groupIDs)},
+		&existingCount,
+	); err != nil {
+		return err
+	}
+	if existingCount != len(groupIDs) {
+		return service.ErrGroupNotFound
+	}
+
+	args := make([]any, 0, len(groupIDs)*2+1)
+	caseClauses := make([]string, 0, len(groupIDs))
+	placeholder := 1
+	for _, id := range groupIDs {
+		caseClauses = append(caseClauses, fmt.Sprintf("WHEN $%d THEN $%d", placeholder, placeholder+1))
+		args = append(args, id, sortOrderByID[id])
+		placeholder += 2
+	}
+	args = append(args, pq.Array(groupIDs))
+
+	query := fmt.Sprintf(`
+		UPDATE groups
+		SET sort_order = CASE id
+			%s
+			ELSE sort_order
+		END
+		WHERE deleted_at IS NULL AND id = ANY($%d)
+	`, strings.Join(caseClauses, "\n\t\t\t"), placeholder)
+
+	result, err := r.sql.ExecContext(ctx, query, args...)
+	if err != nil {
+		return err
+	}
+	affected, err := result.RowsAffected()
+	if err != nil {
+		return err
+	}
+	if affected != int64(len(groupIDs)) {
+		return service.ErrGroupNotFound
+	}
+
+	for _, id := range groupIDs {
+		if err := enqueueSchedulerOutbox(ctx, r.sql, service.SchedulerOutboxEventGroupChanged, nil, &id, nil); err != nil {
+			logger.LegacyPrintf("repository.group", "[SchedulerOutbox] enqueue group sort update failed: group=%d err=%v", id, err)
+		}
+	}
+	return nil
+}

llm-gateway-competitors/sub2api-tar/backend/internal/repository/group_repo_integration_test.go

@@ -0,0 +1,752 @@
+//go:build integration
+
+package repository
+
+import (
+	"context"
+	"database/sql"
+	"errors"
+	"testing"
+
+	dbent "github.com/Wei-Shaw/sub2api/ent"
+	"github.com/Wei-Shaw/sub2api/internal/pkg/pagination"
+	"github.com/Wei-Shaw/sub2api/internal/service"
+	"github.com/stretchr/testify/suite"
+)
+
+type GroupRepoSuite struct {
+	suite.Suite
+	ctx  context.Context
+	tx   *dbent.Tx
+	repo *groupRepository
+}
+
+type forbidSQLExecutor struct {
+	called bool
+}
+
+func (s *forbidSQLExecutor) ExecContext(ctx context.Context, query string, args ...any) (sql.Result, error) {
+	s.called = true
+	return nil, errors.New("unexpected sql exec")
+}
+
+func (s *forbidSQLExecutor) QueryContext(ctx context.Context, query string, args ...any) (*sql.Rows, error) {
+	s.called = true
+	return nil, errors.New("unexpected sql query")
+}
+
+func (s *GroupRepoSuite) SetupTest() {
+	s.ctx = context.Background()
+	tx := testEntTx(s.T())
+	s.tx = tx
+	s.repo = newGroupRepositoryWithSQL(tx.Client(), tx)
+}
+
+func TestGroupRepoSuite(t *testing.T) {
+	suite.Run(t, new(GroupRepoSuite))
+}
+
+// --- Create / GetByID / Update / Delete ---
+
+func (s *GroupRepoSuite) TestCreate() {
+	group := &service.Group{
+		Name:             "test-create",
+		Platform:         service.PlatformAnthropic,
+		RateMultiplier:   1.0,
+		IsExclusive:      false,
+		Status:           service.StatusActive,
+		SubscriptionType: service.SubscriptionTypeStandard,
+	}
+
+	err := s.repo.Create(s.ctx, group)
+	s.Require().NoError(err, "Create")
+	s.Require().NotZero(group.ID, "expected ID to be set")
+
+	got, err := s.repo.GetByID(s.ctx, group.ID)
+	s.Require().NoError(err, "GetByID")
+	s.Require().Equal("test-create", got.Name)
+}
+
+func (s *GroupRepoSuite) TestGetByID_NotFound() {
+	_, err := s.repo.GetByID(s.ctx, 999999)
+	s.Require().Error(err, "expected error for non-existent ID")
+	s.Require().ErrorIs(err, service.ErrGroupNotFound)
+}
+
+func (s *GroupRepoSuite) TestGetByIDLite_DoesNotUseAccountCount() {
+	group := &service.Group{
+		Name:             "lite-group",
+		Platform:         service.PlatformAnthropic,
+		RateMultiplier:   1.0,
+		IsExclusive:      false,
+		Status:           service.StatusActive,
+		SubscriptionType: service.SubscriptionTypeStandard,
+	}
+	s.Require().NoError(s.repo.Create(s.ctx, group))
+
+	spy := &forbidSQLExecutor{}
+	repo := newGroupRepositoryWithSQL(s.tx.Client(), spy)
+
+	got, err := repo.GetByIDLite(s.ctx, group.ID)
+	s.Require().NoError(err)
+	s.Require().Equal(group.ID, got.ID)
+	s.Require().False(spy.called, "expected no direct sql executor usage")
+}
+
+func (s *GroupRepoSuite) TestUpdate() {
+	group := &service.Group{
+		Name:             "original",
+		Platform:         service.PlatformAnthropic,
+		RateMultiplier:   1.0,
+		IsExclusive:      false,
+		Status:           service.StatusActive,
+		SubscriptionType: service.SubscriptionTypeStandard,
+	}
+	s.Require().NoError(s.repo.Create(s.ctx, group))
+
+	group.Name = "updated"
+	err := s.repo.Update(s.ctx, group)
+	s.Require().NoError(err, "Update")
+
+	got, err := s.repo.GetByID(s.ctx, group.ID)
+	s.Require().NoError(err, "GetByID after update")
+	s.Require().Equal("updated", got.Name)
+}
+
+func (s *GroupRepoSuite) TestDelete() {
+	group := &service.Group{
+		Name:             "to-delete",
+		Platform:         service.PlatformAnthropic,
+		RateMultiplier:   1.0,
+		IsExclusive:      false,
+		Status:           service.StatusActive,
+		SubscriptionType: service.SubscriptionTypeStandard,
+	}
+	s.Require().NoError(s.repo.Create(s.ctx, group))
+
+	err := s.repo.Delete(s.ctx, group.ID)
+	s.Require().NoError(err, "Delete")
+
+	_, err = s.repo.GetByID(s.ctx, group.ID)
+	s.Require().Error(err, "expected error after delete")
+	s.Require().ErrorIs(err, service.ErrGroupNotFound)
+}
+
+// --- List / ListWithFilters ---
+
+func (s *GroupRepoSuite) TestList() {
+	baseGroups, basePage, err := s.repo.List(s.ctx, pagination.PaginationParams{Page: 1, PageSize: 10})
+	s.Require().NoError(err, "List base")
+
+	s.Require().NoError(s.repo.Create(s.ctx, &service.Group{
+		Name:             "g1",
+		Platform:         service.PlatformAnthropic,
+		RateMultiplier:   1.0,
+		IsExclusive:      false,
+		Status:           service.StatusActive,
+		SubscriptionType: service.SubscriptionTypeStandard,
+	}))
+	s.Require().NoError(s.repo.Create(s.ctx, &service.Group{
+		Name:             "g2",
+		Platform:         service.PlatformAnthropic,
+		RateMultiplier:   1.0,
+		IsExclusive:      false,
+		Status:           service.StatusActive,
+		SubscriptionType: service.SubscriptionTypeStandard,
+	}))
+
+	groups, page, err := s.repo.List(s.ctx, pagination.PaginationParams{Page: 1, PageSize: 10})
+	s.Require().NoError(err, "List")
+	s.Require().Len(groups, len(baseGroups)+2)
+	s.Require().Equal(basePage.Total+2, page.Total)
+}
+
+func (s *GroupRepoSuite) TestListWithFilters_Platform() {
+	baseGroups, _, err := s.repo.ListWithFilters(
+		s.ctx,
+		pagination.PaginationParams{Page: 1, PageSize: 10},
+		service.PlatformOpenAI,
+		"",
+		"",
+		nil,
+	)
+	s.Require().NoError(err, "ListWithFilters base")
+
+	s.Require().NoError(s.repo.Create(s.ctx, &service.Group{
+		Name:             "g1",
+		Platform:         service.PlatformAnthropic,
+		RateMultiplier:   1.0,
+		IsExclusive:      false,
+		Status:           service.StatusActive,
+		SubscriptionType: service.SubscriptionTypeStandard,
+	}))
+	s.Require().NoError(s.repo.Create(s.ctx, &service.Group{
+		Name:             "g2",
+		Platform:         service.PlatformOpenAI,
+		RateMultiplier:   1.0,
+		IsExclusive:      false,
+		Status:           service.StatusActive,
+		SubscriptionType: service.SubscriptionTypeStandard,
+	}))
+
+	groups, _, err := s.repo.ListWithFilters(s.ctx, pagination.PaginationParams{Page: 1, PageSize: 10}, service.PlatformOpenAI, "", "", nil)
+	s.Require().NoError(err)
+	s.Require().Len(groups, len(baseGroups)+1)
+	// Verify all groups are OpenAI platform
+	for _, g := range groups {
+		s.Require().Equal(service.PlatformOpenAI, g.Platform)
+	}
+}
+
+func (s *GroupRepoSuite) TestListWithFilters_Status() {
+	s.Require().NoError(s.repo.Create(s.ctx, &service.Group{
+		Name:             "g1",
+		Platform:         service.PlatformAnthropic,
+		RateMultiplier:   1.0,
+		IsExclusive:      false,
+		Status:           service.StatusActive,
+		SubscriptionType: service.SubscriptionTypeStandard,
+	}))
+	s.Require().NoError(s.repo.Create(s.ctx, &service.Group{
+		Name:             "g2",
+		Platform:         service.PlatformAnthropic,
+		RateMultiplier:   1.0,
+		IsExclusive:      false,
+		Status:           service.StatusDisabled,
+		SubscriptionType: service.SubscriptionTypeStandard,
+	}))
+
+	groups, _, err := s.repo.ListWithFilters(s.ctx, pagination.PaginationParams{Page: 1, PageSize: 10}, "", service.StatusDisabled, "", nil)
+	s.Require().NoError(err)
+	s.Require().Len(groups, 1)
+	s.Require().Equal(service.StatusDisabled, groups[0].Status)
+}
+
+func (s *GroupRepoSuite) TestListWithFilters_IsExclusive() {
+	s.Require().NoError(s.repo.Create(s.ctx, &service.Group{
+		Name:             "g1",
+		Platform:         service.PlatformAnthropic,
+		RateMultiplier:   1.0,
+		IsExclusive:      false,
+		Status:           service.StatusActive,
+		SubscriptionType: service.SubscriptionTypeStandard,
+	}))
+	s.Require().NoError(s.repo.Create(s.ctx, &service.Group{
+		Name:             "g2",
+		Platform:         service.PlatformAnthropic,
+		RateMultiplier:   1.0,
+		IsExclusive:      true,
+		Status:           service.StatusActive,
+		SubscriptionType: service.SubscriptionTypeStandard,
+	}))
+
+	isExclusive := true
+	groups, _, err := s.repo.ListWithFilters(s.ctx, pagination.PaginationParams{Page: 1, PageSize: 10}, "", "", "", &isExclusive)
+	s.Require().NoError(err)
+	s.Require().Len(groups, 1)
+	s.Require().True(groups[0].IsExclusive)
+}
+
+func (s *GroupRepoSuite) TestListWithFilters_Search() {
+	newRepo := func() (*groupRepository, context.Context) {
+		tx := testEntTx(s.T())
+		return newGroupRepositoryWithSQL(tx.Client(), tx), context.Background()
+	}
+
+	containsID := func(groups []service.Group, id int64) bool {
+		for i := range groups {
+			if groups[i].ID == id {
+				return true
+			}
+		}
+		return false
+	}
+
+	mustCreate := func(repo *groupRepository, ctx context.Context, g *service.Group) *service.Group {
+		s.Require().NoError(repo.Create(ctx, g))
+		s.Require().NotZero(g.ID)
+		return g
+	}
+
+	newGroup := func(name string) *service.Group {
+		return &service.Group{
+			Name:             name,
+			Platform:         service.PlatformAnthropic,
+			RateMultiplier:   1.0,
+			IsExclusive:      false,
+			Status:           service.StatusActive,
+			SubscriptionType: service.SubscriptionTypeStandard,
+		}
+	}
+
+	s.Run("search_name_should_match", func() {
+		repo, ctx := newRepo()
+
+		target := mustCreate(repo, ctx, newGroup("it-group-search-name-target"))
+		other := mustCreate(repo, ctx, newGroup("it-group-search-name-other"))
+
+		groups, _, err := repo.ListWithFilters(ctx, pagination.PaginationParams{Page: 1, PageSize: 50}, "", "", "name-target", nil)
+		s.Require().NoError(err)
+		s.Require().True(containsID(groups, target.ID), "expected target group to match by name")
+		s.Require().False(containsID(groups, other.ID), "expected other group to be filtered out")
+	})
+
+	s.Run("search_description_should_match", func() {
+		repo, ctx := newRepo()
+
+		target := newGroup("it-group-search-desc-target")
+		target.Description = "something about desc-needle in here"
+		target = mustCreate(repo, ctx, target)
+
+		other := newGroup("it-group-search-desc-other")
+		other.Description = "nothing to see here"
+		other = mustCreate(repo, ctx, other)
+
+		groups, _, err := repo.ListWithFilters(ctx, pagination.PaginationParams{Page: 1, PageSize: 50}, "", "", "desc-needle", nil)
+		s.Require().NoError(err)
+		s.Require().True(containsID(groups, target.ID), "expected target group to match by description")
+		s.Require().False(containsID(groups, other.ID), "expected other group to be filtered out")
+	})
+
+	s.Run("search_nonexistent_should_return_empty", func() {
+		repo, ctx := newRepo()
+
+		_ = mustCreate(repo, ctx, newGroup("it-group-search-nonexistent-baseline"))
+
+		search := s.T().Name() + "__no_such_group__"
+		groups, _, err := repo.ListWithFilters(ctx, pagination.PaginationParams{Page: 1, PageSize: 50}, "", "", search, nil)
+		s.Require().NoError(err)
+		s.Require().Empty(groups)
+	})
+
+	s.Run("search_should_be_case_insensitive", func() {
+		repo, ctx := newRepo()
+
+		target := mustCreate(repo, ctx, newGroup("MiXeDCaSe-Needle"))
+		other := mustCreate(repo, ctx, newGroup("it-group-search-case-other"))
+
+		groups, _, err := repo.ListWithFilters(ctx, pagination.PaginationParams{Page: 1, PageSize: 50}, "", "", "mixedcase-needle", nil)
+		s.Require().NoError(err)
+		s.Require().True(containsID(groups, target.ID), "expected case-insensitive match")
+		s.Require().False(containsID(groups, other.ID), "expected other group to be filtered out")
+	})
+
+	s.Run("search_should_escape_like_wildcards", func() {
+		repo, ctx := newRepo()
+
+		percentTarget := mustCreate(repo, ctx, newGroup("it-group-search-100%-target"))
+		percentOther := mustCreate(repo, ctx, newGroup("it-group-search-100X-other"))
+
+		groups, _, err := repo.ListWithFilters(ctx, pagination.PaginationParams{Page: 1, PageSize: 50}, "", "", "100%", nil)
+		s.Require().NoError(err)
+		s.Require().True(containsID(groups, percentTarget.ID), "expected literal %% match")
+		s.Require().False(containsID(groups, percentOther.ID), "expected %% not to act as wildcard")
+
+		underscoreTarget := mustCreate(repo, ctx, newGroup("it-group-search-ab_cd-target"))
+		underscoreOther := mustCreate(repo, ctx, newGroup("it-group-search-abXcd-other"))
+
+		groups, _, err = repo.ListWithFilters(ctx, pagination.PaginationParams{Page: 1, PageSize: 50}, "", "", "ab_cd", nil)
+		s.Require().NoError(err)
+		s.Require().True(containsID(groups, underscoreTarget.ID), "expected literal _ match")
+		s.Require().False(containsID(groups, underscoreOther.ID), "expected _ not to act as wildcard")
+	})
+}
+
+func (s *GroupRepoSuite) TestUpdateSortOrders_BatchCaseWhen() {
+	g1 := &service.Group{
+		Name:             "sort-g1",
+		Platform:         service.PlatformAnthropic,
+		RateMultiplier:   1.0,
+		IsExclusive:      false,
+		Status:           service.StatusActive,
+		SubscriptionType: service.SubscriptionTypeStandard,
+	}
+	g2 := &service.Group{
+		Name:             "sort-g2",
+		Platform:         service.PlatformAnthropic,
+		RateMultiplier:   1.0,
+		IsExclusive:      false,
+		Status:           service.StatusActive,
+		SubscriptionType: service.SubscriptionTypeStandard,
+	}
+	g3 := &service.Group{
+		Name:             "sort-g3",
+		Platform:         service.PlatformAnthropic,
+		RateMultiplier:   1.0,
+		IsExclusive:      false,
+		Status:           service.StatusActive,
+		SubscriptionType: service.SubscriptionTypeStandard,
+	}
+	s.Require().NoError(s.repo.Create(s.ctx, g1))
+	s.Require().NoError(s.repo.Create(s.ctx, g2))
+	s.Require().NoError(s.repo.Create(s.ctx, g3))
+
+	err := s.repo.UpdateSortOrders(s.ctx, []service.GroupSortOrderUpdate{
+		{ID: g1.ID, SortOrder: 30},
+		{ID: g2.ID, SortOrder: 10},
+		{ID: g3.ID, SortOrder: 20},
+		{ID: g2.ID, SortOrder: 15}, // 重复 ID 应以最后一次为准
+	})
+	s.Require().NoError(err)
+
+	got1, err := s.repo.GetByID(s.ctx, g1.ID)
+	s.Require().NoError(err)
+	got2, err := s.repo.GetByID(s.ctx, g2.ID)
+	s.Require().NoError(err)
+	got3, err := s.repo.GetByID(s.ctx, g3.ID)
+	s.Require().NoError(err)
+	s.Require().Equal(30, got1.SortOrder)
+	s.Require().Equal(15, got2.SortOrder)
+	s.Require().Equal(20, got3.SortOrder)
+}
+
+func (s *GroupRepoSuite) TestUpdateSortOrders_MissingGroupNoPartialUpdate() {
+	g1 := &service.Group{
+		Name:             "sort-no-partial",
+		Platform:         service.PlatformAnthropic,
+		RateMultiplier:   1.0,
+		IsExclusive:      false,
+		Status:           service.StatusActive,
+		SubscriptionType: service.SubscriptionTypeStandard,
+	}
+	s.Require().NoError(s.repo.Create(s.ctx, g1))
+
+	before, err := s.repo.GetByID(s.ctx, g1.ID)
+	s.Require().NoError(err)
+	beforeSort := before.SortOrder
+
+	err = s.repo.UpdateSortOrders(s.ctx, []service.GroupSortOrderUpdate{
+		{ID: g1.ID, SortOrder: 99},
+		{ID: 99999999, SortOrder: 1},
+	})
+	s.Require().Error(err)
+	s.Require().ErrorIs(err, service.ErrGroupNotFound)
+
+	after, err := s.repo.GetByID(s.ctx, g1.ID)
+	s.Require().NoError(err)
+	s.Require().Equal(beforeSort, after.SortOrder)
+}
+
+func (s *GroupRepoSuite) TestListWithFilters_AccountCount() {
+	g1 := &service.Group{
+		Name:             "g1",
+		Platform:         service.PlatformAnthropic,
+		RateMultiplier:   1.0,
+		IsExclusive:      false,
+		Status:           service.StatusActive,
+		SubscriptionType: service.SubscriptionTypeStandard,
+	}
+	g2 := &service.Group{
+		Name:             "g2",
+		Platform:         service.PlatformAnthropic,
+		RateMultiplier:   1.0,
+		IsExclusive:      true,
+		Status:           service.StatusActive,
+		SubscriptionType: service.SubscriptionTypeStandard,
+	}
+	s.Require().NoError(s.repo.Create(s.ctx, g1))
+	s.Require().NoError(s.repo.Create(s.ctx, g2))
+
+	var accountID int64
+	s.Require().NoError(scanSingleRow(
+		s.ctx,
+		s.tx,
+		"INSERT INTO accounts (name, platform, type) VALUES ($1, $2, $3) RETURNING id",
+		[]any{"acc1", service.PlatformAnthropic, service.AccountTypeOAuth},
+		&accountID,
+	))
+	_, err := s.tx.ExecContext(s.ctx, "INSERT INTO account_groups (account_id, group_id, priority, created_at) VALUES ($1, $2, $3, NOW())", accountID, g1.ID, 1)
+	s.Require().NoError(err)
+	_, err = s.tx.ExecContext(s.ctx, "INSERT INTO account_groups (account_id, group_id, priority, created_at) VALUES ($1, $2, $3, NOW())", accountID, g2.ID, 1)
+	s.Require().NoError(err)
+
+	isExclusive := true
+	groups, page, err := s.repo.ListWithFilters(s.ctx, pagination.PaginationParams{Page: 1, PageSize: 10}, service.PlatformAnthropic, service.StatusActive, "", &isExclusive)
+	s.Require().NoError(err, "ListWithFilters")
+	s.Require().Equal(int64(1), page.Total)
+	s.Require().Len(groups, 1)
+	s.Require().Equal(g2.ID, groups[0].ID, "ListWithFilters returned wrong group")
+	s.Require().Equal(int64(1), groups[0].AccountCount, "AccountCount mismatch")
+}
+
+// --- ListActive / ListActiveByPlatform ---
+
+func (s *GroupRepoSuite) TestListActive() {
+	baseGroups, err := s.repo.ListActive(s.ctx)
+	s.Require().NoError(err, "ListActive base")
+
+	s.Require().NoError(s.repo.Create(s.ctx, &service.Group{
+		Name:             "active1",
+		Platform:         service.PlatformAnthropic,
+		RateMultiplier:   1.0,
+		IsExclusive:      false,
+		Status:           service.StatusActive,
+		SubscriptionType: service.SubscriptionTypeStandard,
+	}))
+	s.Require().NoError(s.repo.Create(s.ctx, &service.Group{
+		Name:             "inactive1",
+		Platform:         service.PlatformAnthropic,
+		RateMultiplier:   1.0,
+		IsExclusive:      false,
+		Status:           service.StatusDisabled,
+		SubscriptionType: service.SubscriptionTypeStandard,
+	}))
+
+	groups, err := s.repo.ListActive(s.ctx)
+	s.Require().NoError(err, "ListActive")
+	s.Require().Len(groups, len(baseGroups)+1)
+	// Verify our test group is in the results
+	var found bool
+	for _, g := range groups {
+		if g.Name == "active1" {
+			found = true
+			break
+		}
+	}
+	s.Require().True(found, "active1 group should be in results")
+}
+
+func (s *GroupRepoSuite) TestListActiveByPlatform() {
+	s.Require().NoError(s.repo.Create(s.ctx, &service.Group{
+		Name:             "g1",
+		Platform:         service.PlatformAnthropic,
+		RateMultiplier:   1.0,
+		IsExclusive:      false,
+		Status:           service.StatusActive,
+		SubscriptionType: service.SubscriptionTypeStandard,
+	}))
+	s.Require().NoError(s.repo.Create(s.ctx, &service.Group{
+		Name:             "g2",
+		Platform:         service.PlatformOpenAI,
+		RateMultiplier:   1.0,
+		IsExclusive:      false,
+		Status:           service.StatusActive,
+		SubscriptionType: service.SubscriptionTypeStandard,
+	}))
+	s.Require().NoError(s.repo.Create(s.ctx, &service.Group{
+		Name:             "g3",
+		Platform:         service.PlatformAnthropic,
+		RateMultiplier:   1.0,
+		IsExclusive:      false,
+		Status:           service.StatusDisabled,
+		SubscriptionType: service.SubscriptionTypeStandard,
+	}))
+
+	groups, err := s.repo.ListActiveByPlatform(s.ctx, service.PlatformAnthropic)
+	s.Require().NoError(err, "ListActiveByPlatform")
+	// 1 default anthropic group + 1 test active anthropic group = 2 total
+	s.Require().Len(groups, 2)
+	// Verify our test group is in the results
+	var found bool
+	for _, g := range groups {
+		if g.Name == "g1" {
+			found = true
+			break
+		}
+	}
+	s.Require().True(found, "g1 group should be in results")
+}
+
+// --- ExistsByName ---
+
+func (s *GroupRepoSuite) TestExistsByName() {
+	s.Require().NoError(s.repo.Create(s.ctx, &service.Group{
+		Name:             "existing-group",
+		Platform:         service.PlatformAnthropic,
+		RateMultiplier:   1.0,
+		IsExclusive:      false,
+		Status:           service.StatusActive,
+		SubscriptionType: service.SubscriptionTypeStandard,
+	}))
+
+	exists, err := s.repo.ExistsByName(s.ctx, "existing-group")
+	s.Require().NoError(err, "ExistsByName")
+	s.Require().True(exists)
+
+	notExists, err := s.repo.ExistsByName(s.ctx, "non-existing")
+	s.Require().NoError(err)
+	s.Require().False(notExists)
+}
+
+// --- GetAccountCount ---
+
+func (s *GroupRepoSuite) TestGetAccountCount() {
+	group := &service.Group{
+		Name:             "g-count",
+		Platform:         service.PlatformAnthropic,
+		RateMultiplier:   1.0,
+		IsExclusive:      false,
+		Status:           service.StatusActive,
+		SubscriptionType: service.SubscriptionTypeStandard,
+	}
+	s.Require().NoError(s.repo.Create(s.ctx, group))
+
+	var a1 int64
+	s.Require().NoError(scanSingleRow(
+		s.ctx,
+		s.tx,
+		"INSERT INTO accounts (name, platform, type) VALUES ($1, $2, $3) RETURNING id",
+		[]any{"a1", service.PlatformAnthropic, service.AccountTypeOAuth},
+		&a1,
+	))
+	var a2 int64
+	s.Require().NoError(scanSingleRow(
+		s.ctx,
+		s.tx,
+		"INSERT INTO accounts (name, platform, type) VALUES ($1, $2, $3) RETURNING id",
+		[]any{"a2", service.PlatformAnthropic, service.AccountTypeOAuth},
+		&a2,
+	))
+
+	_, err := s.tx.ExecContext(s.ctx, "INSERT INTO account_groups (account_id, group_id, priority, created_at) VALUES ($1, $2, $3, NOW())", a1, group.ID, 1)
+	s.Require().NoError(err)
+	_, err = s.tx.ExecContext(s.ctx, "INSERT INTO account_groups (account_id, group_id, priority, created_at) VALUES ($1, $2, $3, NOW())", a2, group.ID, 2)
+	s.Require().NoError(err)
+
+	count, err := s.repo.GetAccountCount(s.ctx, group.ID)
+	s.Require().NoError(err, "GetAccountCount")
+	s.Require().Equal(int64(2), count)
+}
+
+func (s *GroupRepoSuite) TestGetAccountCount_Empty() {
+	group := &service.Group{
+		Name:             "g-empty",
+		Platform:         service.PlatformAnthropic,
+		RateMultiplier:   1.0,
+		IsExclusive:      false,
+		Status:           service.StatusActive,
+		SubscriptionType: service.SubscriptionTypeStandard,
+	}
+	s.Require().NoError(s.repo.Create(s.ctx, group))
+
+	count, err := s.repo.GetAccountCount(s.ctx, group.ID)
+	s.Require().NoError(err)
+	s.Require().Zero(count)
+}
+
+// --- DeleteAccountGroupsByGroupID ---
+
+func (s *GroupRepoSuite) TestDeleteAccountGroupsByGroupID() {
+	g := &service.Group{
+		Name:             "g-del",
+		Platform:         service.PlatformAnthropic,
+		RateMultiplier:   1.0,
+		IsExclusive:      false,
+		Status:           service.StatusActive,
+		SubscriptionType: service.SubscriptionTypeStandard,
+	}
+	s.Require().NoError(s.repo.Create(s.ctx, g))
+	var accountID int64
+	s.Require().NoError(scanSingleRow(
+		s.ctx,
+		s.tx,
+		"INSERT INTO accounts (name, platform, type) VALUES ($1, $2, $3) RETURNING id",
+		[]any{"acc-del", service.PlatformAnthropic, service.AccountTypeOAuth},
+		&accountID,
+	))
+	_, err := s.tx.ExecContext(s.ctx, "INSERT INTO account_groups (account_id, group_id, priority, created_at) VALUES ($1, $2, $3, NOW())", accountID, g.ID, 1)
+	s.Require().NoError(err)
+
+	affected, err := s.repo.DeleteAccountGroupsByGroupID(s.ctx, g.ID)
+	s.Require().NoError(err, "DeleteAccountGroupsByGroupID")
+	s.Require().Equal(int64(1), affected, "expected 1 affected row")
+
+	count, err := s.repo.GetAccountCount(s.ctx, g.ID)
+	s.Require().NoError(err, "GetAccountCount")
+	s.Require().Equal(int64(0), count, "expected 0 account groups")
+}
+
+func (s *GroupRepoSuite) TestDeleteAccountGroupsByGroupID_MultipleAccounts() {
+	g := &service.Group{
+		Name:             "g-multi",
+		Platform:         service.PlatformAnthropic,
+		RateMultiplier:   1.0,
+		IsExclusive:      false,
+		Status:           service.StatusActive,
+		SubscriptionType: service.SubscriptionTypeStandard,
+	}
+	s.Require().NoError(s.repo.Create(s.ctx, g))
+
+	insertAccount := func(name string) int64 {
+		var id int64
+		s.Require().NoError(scanSingleRow(
+			s.ctx,
+			s.tx,
+			"INSERT INTO accounts (name, platform, type) VALUES ($1, $2, $3) RETURNING id",
+			[]any{name, service.PlatformAnthropic, service.AccountTypeOAuth},
+			&id,
+		))
+		return id
+	}
+	a1 := insertAccount("a1")
+	a2 := insertAccount("a2")
+	a3 := insertAccount("a3")
+	_, err := s.tx.ExecContext(s.ctx, "INSERT INTO account_groups (account_id, group_id, priority, created_at) VALUES ($1, $2, $3, NOW())", a1, g.ID, 1)
+	s.Require().NoError(err)
+	_, err = s.tx.ExecContext(s.ctx, "INSERT INTO account_groups (account_id, group_id, priority, created_at) VALUES ($1, $2, $3, NOW())", a2, g.ID, 2)
+	s.Require().NoError(err)
+	_, err = s.tx.ExecContext(s.ctx, "INSERT INTO account_groups (account_id, group_id, priority, created_at) VALUES ($1, $2, $3, NOW())", a3, g.ID, 3)
+	s.Require().NoError(err)
+
+	affected, err := s.repo.DeleteAccountGroupsByGroupID(s.ctx, g.ID)
+	s.Require().NoError(err)
+	s.Require().Equal(int64(3), affected)
+
+	count, _ := s.repo.GetAccountCount(s.ctx, g.ID)
+	s.Require().Zero(count)
+}
+
+// --- 软删除过滤测试 ---
+
+func (s *GroupRepoSuite) TestDelete_SoftDelete_NotVisibleInList() {
+	group := &service.Group{
+		Name:             "to-soft-delete",
+		Platform:         service.PlatformAnthropic,
+		RateMultiplier:   1.0,
+		IsExclusive:      false,
+		Status:           service.StatusActive,
+		SubscriptionType: service.SubscriptionTypeStandard,
+	}
+	s.Require().NoError(s.repo.Create(s.ctx, group))
+
+	// 获取删除前的列表数量
+	listBefore, _, err := s.repo.List(s.ctx, pagination.PaginationParams{Page: 1, PageSize: 100})
+	s.Require().NoError(err)
+	beforeCount := len(listBefore)
+
+	// 软删除
+	err = s.repo.Delete(s.ctx, group.ID)
+	s.Require().NoError(err, "Delete (soft delete)")
+
+	// 验证列表中不再包含软删除的 group
+	listAfter, _, err := s.repo.List(s.ctx, pagination.PaginationParams{Page: 1, PageSize: 100})
+	s.Require().NoError(err)
+	s.Require().Len(listAfter, beforeCount-1, "soft deleted group should not appear in list")
+
+	// 验证 GetByID 也无法找到
+	_, err = s.repo.GetByID(s.ctx, group.ID)
+	s.Require().Error(err)
+	s.Require().ErrorIs(err, service.ErrGroupNotFound)
+}
+
+func (s *GroupRepoSuite) TestDelete_SoftDeletedGroup_lockForUpdate() {
+	group := &service.Group{
+		Name:             "lock-soft-delete",
+		Platform:         service.PlatformAnthropic,
+		RateMultiplier:   1.0,
+		IsExclusive:      false,
+		Status:           service.StatusActive,
+		SubscriptionType: service.SubscriptionTypeStandard,
+	}
+	s.Require().NoError(s.repo.Create(s.ctx, group))
+
+	// 软删除
+	err := s.repo.Delete(s.ctx, group.ID)
+	s.Require().NoError(err)
+
+	// 验证软删除的 group 在 GetByID 时返回 ErrGroupNotFound
+	// 这证明 lockForUpdate 的 deleted_at IS NULL 过滤正在工作
+	_, err = s.repo.GetByID(s.ctx, group.ID)
+	s.Require().Error(err, "should fail to get soft-deleted group")
+	s.Require().ErrorIs(err, service.ErrGroupNotFound)
+}

llm-gateway-competitors/sub2api-tar/backend/internal/repository/http_upstream.go

@@ -0,0 +1,886 @@
+package repository
+
+import (
+	"errors"
+	"fmt"
+	"io"
+	"log/slog"
+	"net"
+	"net/http"
+	"net/url"
+	"strings"
+	"sync"
+	"sync/atomic"
+	"time"
+
+	"github.com/Wei-Shaw/sub2api/internal/config"
+	"github.com/Wei-Shaw/sub2api/internal/pkg/proxyurl"
+	"github.com/Wei-Shaw/sub2api/internal/pkg/proxyutil"
+	"github.com/Wei-Shaw/sub2api/internal/pkg/tlsfingerprint"
+	"github.com/Wei-Shaw/sub2api/internal/service"
+	"github.com/Wei-Shaw/sub2api/internal/util/urlvalidator"
+)
+
+// 默认配置常量
+// 这些值在配置文件未指定时作为回退默认值使用
+const (
+	// directProxyKey: 无代理时的缓存键标识
+	directProxyKey = "direct"
+	// defaultMaxIdleConns: 默认最大空闲连接总数
+	// HTTP/2 场景下，单连接可多路复用，240 足以支撑高并发
+	defaultMaxIdleConns = 240
+	// defaultMaxIdleConnsPerHost: 默认每主机最大空闲连接数
+	defaultMaxIdleConnsPerHost = 120
+	// defaultMaxConnsPerHost: 默认每主机最大连接数（含活跃连接）
+	// 达到上限后新请求会等待，而非无限创建连接
+	defaultMaxConnsPerHost = 240
+	// defaultIdleConnTimeout: 默认空闲连接超时时间（90秒）
+	// 超时后连接会被关闭，释放系统资源（建议小于上游 LB 超时）
+	defaultIdleConnTimeout = 90 * time.Second
+	// defaultResponseHeaderTimeout: 默认等待响应头超时时间（5分钟）
+	// LLM 请求可能排队较久，需要较长超时
+	defaultResponseHeaderTimeout = 300 * time.Second
+	// defaultMaxUpstreamClients: 默认最大客户端缓存数量
+	// 超出后会淘汰最久未使用的客户端
+	defaultMaxUpstreamClients = 5000
+	// defaultClientIdleTTLSeconds: 默认客户端空闲回收阈值（15分钟）
+	defaultClientIdleTTLSeconds = 900
+)
+
+var errUpstreamClientLimitReached = errors.New("upstream client cache limit reached")
+
+// poolSettings 连接池配置参数
+// 封装 Transport 所需的各项连接池参数
+type poolSettings struct {
+	maxIdleConns          int           // 最大空闲连接总数
+	maxIdleConnsPerHost   int           // 每主机最大空闲连接数
+	maxConnsPerHost       int           // 每主机最大连接数（含活跃）
+	idleConnTimeout       time.Duration // 空闲连接超时时间
+	responseHeaderTimeout time.Duration // 等待响应头超时时间
+}
+
+// upstreamClientEntry 上游客户端缓存条目
+// 记录客户端实例及其元数据，用于连接池管理和淘汰策略
+type upstreamClientEntry struct {
+	client   *http.Client // HTTP 客户端实例
+	proxyKey string       // 代理标识（用于检测代理变更）
+	poolKey  string       // 连接池配置标识（用于检测配置变更）
+	lastUsed int64        // 最后使用时间戳（纳秒），用于 LRU 淘汰
+	inFlight int64        // 当前进行中的请求数，>0 时不可淘汰
+}
+
+// httpUpstreamService 通用 HTTP 上游服务
+// 用于向任意 HTTP API（Claude、OpenAI 等）发送请求，支持可选代理
+//
+// 架构设计：
+// - 根据隔离策略（proxy/account/account_proxy）缓存客户端实例
+// - 每个客户端拥有独立的 Transport 连接池
+// - 支持 LRU + 空闲时间双重淘汰策略
+//
+// 性能优化：
+// 1. 根据隔离策略缓存客户端实例，避免频繁创建 http.Client
+// 2. 复用 Transport 连接池，减少 TCP 握手和 TLS 协商开销
+// 3. 支持账号级隔离与空闲回收，降低连接层关联风险
+// 4. 达到最大连接数后等待可用连接，而非无限创建
+// 5. 仅回收空闲客户端，避免中断活跃请求
+// 6. HTTP/2 多路复用，连接上限不等于并发请求上限
+// 7. 代理变更时清空旧连接池，避免复用错误代理
+// 8. 账号并发数与连接池上限对应（账号隔离策略下）
+type httpUpstreamService struct {
+	cfg     *config.Config                  // 全局配置
+	mu      sync.RWMutex                    // 保护 clients map 的读写锁
+	clients map[string]*upstreamClientEntry // 客户端缓存池，key 由隔离策略决定
+}
+
+// NewHTTPUpstream 创建通用 HTTP 上游服务
+// 使用配置中的连接池参数构建 Transport
+//
+// 参数:
+//   - cfg: 全局配置，包含连接池参数和隔离策略
+//
+// 返回:
+//   - service.HTTPUpstream 接口实现
+func NewHTTPUpstream(cfg *config.Config) service.HTTPUpstream {
+	return &httpUpstreamService{
+		cfg:     cfg,
+		clients: make(map[string]*upstreamClientEntry),
+	}
+}
+
+// Do 执行 HTTP 请求
+// 根据隔离策略获取或创建客户端，并跟踪请求生命周期
+//
+// 参数:
+//   - req: HTTP 请求对象
+//   - proxyURL: 代理地址，空字符串表示直连
+//   - accountID: 账户 ID，用于账户级隔离
+//   - accountConcurrency: 账户并发限制，用于动态调整连接池大小
+//
+// 返回:
+//   - *http.Response: HTTP 响应（Body 已包装，关闭时自动更新计数）
+//   - error: 请求错误
+//
+// 注意:
+//   - 调用方必须关闭 resp.Body，否则会导致 inFlight 计数泄漏
+//   - inFlight > 0 的客户端不会被淘汰，确保活跃请求不被中断
+func (s *httpUpstreamService) Do(req *http.Request, proxyURL string, accountID int64, accountConcurrency int) (*http.Response, error) {
+	if err := s.validateRequestHost(req); err != nil {
+		return nil, err
+	}
+
+	// 获取或创建对应的客户端，并标记请求占用
+	entry, err := s.acquireClient(proxyURL, accountID, accountConcurrency)
+	if err != nil {
+		return nil, err
+	}
+
+	// 执行请求
+	resp, err := entry.client.Do(req)
+	if err != nil {
+		// 请求失败，立即减少计数
+		atomic.AddInt64(&entry.inFlight, -1)
+		atomic.StoreInt64(&entry.lastUsed, time.Now().UnixNano())
+		return nil, err
+	}
+
+	// 包装响应体，在关闭时自动减少计数并更新时间戳
+	// 这确保了流式响应（如 SSE）在完全读取前不会被淘汰
+	resp.Body = wrapTrackedBody(resp.Body, func() {
+		atomic.AddInt64(&entry.inFlight, -1)
+		atomic.StoreInt64(&entry.lastUsed, time.Now().UnixNano())
+	})
+
+	return resp, nil
+}
+
+// DoWithTLS 执行带 TLS 指纹伪装的 HTTP 请求
+// 根据 enableTLSFingerprint 参数决定是否使用 TLS 指纹
+//
+// 参数:
+//   - req: HTTP 请求对象
+//   - proxyURL: 代理地址，空字符串表示直连
+//   - accountID: 账户 ID，用于账户级隔离和 TLS 指纹模板选择
+//   - accountConcurrency: 账户并发限制，用于动态调整连接池大小
+//   - enableTLSFingerprint: 是否启用 TLS 指纹伪装
+//
+// TLS 指纹说明:
+//   - 当 enableTLSFingerprint=true 时，使用 utls 库模拟 Claude CLI 的 TLS 指纹
+//   - 指纹模板根据 accountID % len(profiles) 自动选择
+//   - 支持直连、HTTP/HTTPS 代理、SOCKS5 代理三种场景
+func (s *httpUpstreamService) DoWithTLS(req *http.Request, proxyURL string, accountID int64, accountConcurrency int, enableTLSFingerprint bool) (*http.Response, error) {
+	// 如果未启用 TLS 指纹，直接使用标准请求路径
+	if !enableTLSFingerprint {
+		return s.Do(req, proxyURL, accountID, accountConcurrency)
+	}
+
+	// TLS 指纹已启用，记录调试日志
+	targetHost := ""
+	if req != nil && req.URL != nil {
+		targetHost = req.URL.Host
+	}
+	proxyInfo := "direct"
+	if proxyURL != "" {
+		proxyInfo = proxyURL
+	}
+	slog.Debug("tls_fingerprint_enabled", "account_id", accountID, "target", targetHost, "proxy", proxyInfo)
+
+	if err := s.validateRequestHost(req); err != nil {
+		return nil, err
+	}
+
+	// 获取 TLS 指纹 Profile
+	registry := tlsfingerprint.GlobalRegistry()
+	profile := registry.GetProfileByAccountID(accountID)
+	if profile == nil {
+		// 如果获取不到 profile，回退到普通请求
+		slog.Debug("tls_fingerprint_no_profile", "account_id", accountID, "fallback", "standard_request")
+		return s.Do(req, proxyURL, accountID, accountConcurrency)
+	}
+
+	slog.Debug("tls_fingerprint_using_profile", "account_id", accountID, "profile", profile.Name, "grease", profile.EnableGREASE)
+
+	// 获取或创建带 TLS 指纹的客户端
+	entry, err := s.acquireClientWithTLS(proxyURL, accountID, accountConcurrency, profile)
+	if err != nil {
+		slog.Debug("tls_fingerprint_acquire_client_failed", "account_id", accountID, "error", err)
+		return nil, err
+	}
+
+	// 执行请求
+	resp, err := entry.client.Do(req)
+	if err != nil {
+		// 请求失败，立即减少计数
+		atomic.AddInt64(&entry.inFlight, -1)
+		atomic.StoreInt64(&entry.lastUsed, time.Now().UnixNano())
+		slog.Debug("tls_fingerprint_request_failed", "account_id", accountID, "error", err)
+		return nil, err
+	}
+
+	slog.Debug("tls_fingerprint_request_success", "account_id", accountID, "status", resp.StatusCode)
+
+	// 包装响应体，在关闭时自动减少计数并更新时间戳
+	resp.Body = wrapTrackedBody(resp.Body, func() {
+		atomic.AddInt64(&entry.inFlight, -1)
+		atomic.StoreInt64(&entry.lastUsed, time.Now().UnixNano())
+	})
+
+	return resp, nil
+}
+
+// acquireClientWithTLS 获取或创建带 TLS 指纹的客户端
+func (s *httpUpstreamService) acquireClientWithTLS(proxyURL string, accountID int64, accountConcurrency int, profile *tlsfingerprint.Profile) (*upstreamClientEntry, error) {
+	return s.getClientEntryWithTLS(proxyURL, accountID, accountConcurrency, profile, true, true)
+}
+
+// getClientEntryWithTLS 获取或创建带 TLS 指纹的客户端条目
+// TLS 指纹客户端使用独立的缓存键，与普通客户端隔离
+func (s *httpUpstreamService) getClientEntryWithTLS(proxyURL string, accountID int64, accountConcurrency int, profile *tlsfingerprint.Profile, markInFlight bool, enforceLimit bool) (*upstreamClientEntry, error) {
+	isolation := s.getIsolationMode()
+	proxyKey, parsedProxy, err := normalizeProxyURL(proxyURL)
+	if err != nil {
+		return nil, err
+	}
+	// TLS 指纹客户端使用独立的缓存键，加 "tls:" 前缀
+	cacheKey := "tls:" + buildCacheKey(isolation, proxyKey, accountID)
+	poolKey := s.buildPoolKey(isolation, accountConcurrency) + ":tls"
+
+	now := time.Now()
+	nowUnix := now.UnixNano()
+
+	// 读锁快速路径
+	s.mu.RLock()
+	if entry, ok := s.clients[cacheKey]; ok && s.shouldReuseEntry(entry, isolation, proxyKey, poolKey) {
+		atomic.StoreInt64(&entry.lastUsed, nowUnix)
+		if markInFlight {
+			atomic.AddInt64(&entry.inFlight, 1)
+		}
+		s.mu.RUnlock()
+		slog.Debug("tls_fingerprint_reusing_client", "account_id", accountID, "cache_key", cacheKey)
+		return entry, nil
+	}
+	s.mu.RUnlock()
+
+	// 写锁慢路径
+	s.mu.Lock()
+	if entry, ok := s.clients[cacheKey]; ok {
+		if s.shouldReuseEntry(entry, isolation, proxyKey, poolKey) {
+			atomic.StoreInt64(&entry.lastUsed, nowUnix)
+			if markInFlight {
+				atomic.AddInt64(&entry.inFlight, 1)
+			}
+			s.mu.Unlock()
+			slog.Debug("tls_fingerprint_reusing_client", "account_id", accountID, "cache_key", cacheKey)
+			return entry, nil
+		}
+		slog.Debug("tls_fingerprint_evicting_stale_client",
+			"account_id", accountID,
+			"cache_key", cacheKey,
+			"proxy_changed", entry.proxyKey != proxyKey,
+			"pool_changed", entry.poolKey != poolKey)
+		s.removeClientLocked(cacheKey, entry)
+	}
+
+	// 超出缓存上限时尝试淘汰
+	if enforceLimit && s.maxUpstreamClients() > 0 {
+		s.evictIdleLocked(now)
+		if len(s.clients) >= s.maxUpstreamClients() {
+			if !s.evictOldestIdleLocked() {
+				s.mu.Unlock()
+				return nil, errUpstreamClientLimitReached
+			}
+		}
+	}
+
+	// 创建带 TLS 指纹的 Transport
+	slog.Debug("tls_fingerprint_creating_new_client", "account_id", accountID, "cache_key", cacheKey, "proxy", proxyKey)
+	settings := s.resolvePoolSettings(isolation, accountConcurrency)
+	transport, err := buildUpstreamTransportWithTLSFingerprint(settings, parsedProxy, profile)
+	if err != nil {
+		s.mu.Unlock()
+		return nil, fmt.Errorf("build TLS fingerprint transport: %w", err)
+	}
+
+	client := &http.Client{Transport: transport}
+	if s.shouldValidateResolvedIP() {
+		client.CheckRedirect = s.redirectChecker
+	}
+
+	entry := &upstreamClientEntry{
+		client:   client,
+		proxyKey: proxyKey,
+		poolKey:  poolKey,
+	}
+	atomic.StoreInt64(&entry.lastUsed, nowUnix)
+	if markInFlight {
+		atomic.StoreInt64(&entry.inFlight, 1)
+	}
+	s.clients[cacheKey] = entry
+
+	s.evictIdleLocked(now)
+	s.evictOverLimitLocked()
+	s.mu.Unlock()
+	return entry, nil
+}
+
+func (s *httpUpstreamService) shouldValidateResolvedIP() bool {
+	if s.cfg == nil {
+		return false
+	}
+	if !s.cfg.Security.URLAllowlist.Enabled {
+		return false
+	}
+	return !s.cfg.Security.URLAllowlist.AllowPrivateHosts
+}
+
+func (s *httpUpstreamService) validateRequestHost(req *http.Request) error {
+	if !s.shouldValidateResolvedIP() {
+		return nil
+	}
+	if req == nil || req.URL == nil {
+		return errors.New("request url is nil")
+	}
+	host := strings.TrimSpace(req.URL.Hostname())
+	if host == "" {
+		return errors.New("request host is empty")
+	}
+	if err := urlvalidator.ValidateResolvedIP(host); err != nil {
+		return err
+	}
+	return nil
+}
+
+func (s *httpUpstreamService) redirectChecker(req *http.Request, via []*http.Request) error {
+	if len(via) >= 10 {
+		return errors.New("stopped after 10 redirects")
+	}
+	return s.validateRequestHost(req)
+}
+
+// acquireClient 获取或创建客户端，并标记为进行中请求
+// 用于请求路径，避免在获取后被淘汰
+func (s *httpUpstreamService) acquireClient(proxyURL string, accountID int64, accountConcurrency int) (*upstreamClientEntry, error) {
+	return s.getClientEntry(proxyURL, accountID, accountConcurrency, true, true)
+}
+
+// getOrCreateClient 获取或创建客户端
+// 根据隔离策略和参数决定缓存键，处理代理变更和配置变更
+//
+// 参数:
+//   - proxyURL: 代理地址
+//   - accountID: 账户 ID
+//   - accountConcurrency: 账户并发限制
+//
+// 返回:
+//   - *upstreamClientEntry: 客户端缓存条目
+//
+// 隔离策略说明:
+//   - proxy: 按代理地址隔离，同一代理共享客户端
+//   - account: 按账户隔离，同一账户共享客户端（代理变更时重建）
+//   - account_proxy: 按账户+代理组合隔离，最细粒度
+func (s *httpUpstreamService) getOrCreateClient(proxyURL string, accountID int64, accountConcurrency int) (*upstreamClientEntry, error) {
+	return s.getClientEntry(proxyURL, accountID, accountConcurrency, false, false)
+}
+
+// getClientEntry 获取或创建客户端条目
+// markInFlight=true 时会标记进行中请求，用于请求路径防止被淘汰
+// enforceLimit=true 时会限制客户端数量，超限且无法淘汰时返回错误
+func (s *httpUpstreamService) getClientEntry(proxyURL string, accountID int64, accountConcurrency int, markInFlight bool, enforceLimit bool) (*upstreamClientEntry, error) {
+	// 获取隔离模式
+	isolation := s.getIsolationMode()
+	// 标准化代理 URL 并解析
+	proxyKey, parsedProxy, err := normalizeProxyURL(proxyURL)
+	if err != nil {
+		return nil, err
+	}
+	// 构建缓存键（根据隔离策略不同）
+	cacheKey := buildCacheKey(isolation, proxyKey, accountID)
+	// 构建连接池配置键（用于检测配置变更）
+	poolKey := s.buildPoolKey(isolation, accountConcurrency)
+
+	now := time.Now()
+	nowUnix := now.UnixNano()
+
+	// 读锁快速路径：命中缓存直接返回，减少锁竞争
+	s.mu.RLock()
+	if entry, ok := s.clients[cacheKey]; ok && s.shouldReuseEntry(entry, isolation, proxyKey, poolKey) {
+		atomic.StoreInt64(&entry.lastUsed, nowUnix)
+		if markInFlight {
+			atomic.AddInt64(&entry.inFlight, 1)
+		}
+		s.mu.RUnlock()
+		return entry, nil
+	}
+	s.mu.RUnlock()
+
+	// 写锁慢路径：创建或重建客户端
+	s.mu.Lock()
+	if entry, ok := s.clients[cacheKey]; ok {
+		if s.shouldReuseEntry(entry, isolation, proxyKey, poolKey) {
+			atomic.StoreInt64(&entry.lastUsed, nowUnix)
+			if markInFlight {
+				atomic.AddInt64(&entry.inFlight, 1)
+			}
+			s.mu.Unlock()
+			return entry, nil
+		}
+		s.removeClientLocked(cacheKey, entry)
+	}
+
+	// 超出缓存上限时尝试淘汰，无法淘汰则拒绝新建
+	if enforceLimit && s.maxUpstreamClients() > 0 {
+		s.evictIdleLocked(now)
+		if len(s.clients) >= s.maxUpstreamClients() {
+			if !s.evictOldestIdleLocked() {
+				s.mu.Unlock()
+				return nil, errUpstreamClientLimitReached
+			}
+		}
+	}
+
+	// 缓存未命中或需要重建，创建新客户端
+	settings := s.resolvePoolSettings(isolation, accountConcurrency)
+	transport, err := buildUpstreamTransport(settings, parsedProxy)
+	if err != nil {
+		s.mu.Unlock()
+		return nil, fmt.Errorf("build transport: %w", err)
+	}
+	client := &http.Client{Transport: transport}
+	if s.shouldValidateResolvedIP() {
+		client.CheckRedirect = s.redirectChecker
+	}
+	entry := &upstreamClientEntry{
+		client:   client,
+		proxyKey: proxyKey,
+		poolKey:  poolKey,
+	}
+	atomic.StoreInt64(&entry.lastUsed, nowUnix)
+	if markInFlight {
+		atomic.StoreInt64(&entry.inFlight, 1)
+	}
+	s.clients[cacheKey] = entry
+
+	// 执行淘汰策略：先淘汰空闲超时的，再淘汰超出数量限制的
+	s.evictIdleLocked(now)
+	s.evictOverLimitLocked()
+	s.mu.Unlock()
+	return entry, nil
+}
+
+// shouldReuseEntry 判断缓存条目是否可复用
+// 若代理或连接池配置发生变化，则需要重建客户端
+func (s *httpUpstreamService) shouldReuseEntry(entry *upstreamClientEntry, isolation, proxyKey, poolKey string) bool {
+	if entry == nil {
+		return false
+	}
+	if isolation == config.ConnectionPoolIsolationAccount && entry.proxyKey != proxyKey {
+		return false
+	}
+	if entry.poolKey != poolKey {
+		return false
+	}
+	return true
+}
+
+// removeClientLocked 移除客户端（需持有锁）
+// 从缓存中删除并关闭空闲连接
+//
+// 参数:
+//   - key: 缓存键
+//   - entry: 客户端条目
+func (s *httpUpstreamService) removeClientLocked(key string, entry *upstreamClientEntry) {
+	delete(s.clients, key)
+	if entry != nil && entry.client != nil {
+		// 关闭空闲连接，释放系统资源
+		// 注意：这不会中断活跃连接
+		entry.client.CloseIdleConnections()
+	}
+}
+
+// evictIdleLocked 淘汰空闲超时的客户端（需持有锁）
+// 遍历所有客户端，移除超过 TTL 且无活跃请求的条目
+//
+// 参数:
+//   - now: 当前时间
+func (s *httpUpstreamService) evictIdleLocked(now time.Time) {
+	ttl := s.clientIdleTTL()
+	if ttl <= 0 {
+		return
+	}
+	// 计算淘汰截止时间
+	cutoff := now.Add(-ttl).UnixNano()
+	for key, entry := range s.clients {
+		// 跳过有活跃请求的客户端
+		if atomic.LoadInt64(&entry.inFlight) != 0 {
+			continue
+		}
+		// 淘汰超时的空闲客户端
+		if atomic.LoadInt64(&entry.lastUsed) <= cutoff {
+			s.removeClientLocked(key, entry)
+		}
+	}
+}
+
+// evictOldestIdleLocked 淘汰最久未使用且无活跃请求的客户端（需持有锁）
+func (s *httpUpstreamService) evictOldestIdleLocked() bool {
+	var (
+		oldestKey   string
+		oldestEntry *upstreamClientEntry
+		oldestTime  int64
+	)
+	// 查找最久未使用且无活跃请求的客户端
+	for key, entry := range s.clients {
+		// 跳过有活跃请求的客户端
+		if atomic.LoadInt64(&entry.inFlight) != 0 {
+			continue
+		}
+		lastUsed := atomic.LoadInt64(&entry.lastUsed)
+		if oldestEntry == nil || lastUsed < oldestTime {
+			oldestKey = key
+			oldestEntry = entry
+			oldestTime = lastUsed
+		}
+	}
+	// 所有客户端都有活跃请求，无法淘汰
+	if oldestEntry == nil {
+		return false
+	}
+	s.removeClientLocked(oldestKey, oldestEntry)
+	return true
+}
+
+// evictOverLimitLocked 淘汰超出数量限制的客户端（需持有锁）
+// 使用 LRU 策略，优先淘汰最久未使用且无活跃请求的客户端
+func (s *httpUpstreamService) evictOverLimitLocked() bool {
+	maxClients := s.maxUpstreamClients()
+	if maxClients <= 0 {
+		return false
+	}
+	evicted := false
+	// 循环淘汰直到满足数量限制
+	for len(s.clients) > maxClients {
+		if !s.evictOldestIdleLocked() {
+			return evicted
+		}
+		evicted = true
+	}
+	return evicted
+}
+
+// getIsolationMode 获取连接池隔离模式
+// 从配置中读取，无效值回退到 account_proxy 模式
+//
+// 返回:
+//   - string: 隔离模式（proxy/account/account_proxy）
+func (s *httpUpstreamService) getIsolationMode() string {
+	if s.cfg == nil {
+		return config.ConnectionPoolIsolationAccountProxy
+	}
+	mode := strings.ToLower(strings.TrimSpace(s.cfg.Gateway.ConnectionPoolIsolation))
+	if mode == "" {
+		return config.ConnectionPoolIsolationAccountProxy
+	}
+	switch mode {
+	case config.ConnectionPoolIsolationProxy, config.ConnectionPoolIsolationAccount, config.ConnectionPoolIsolationAccountProxy:
+		return mode
+	default:
+		return config.ConnectionPoolIsolationAccountProxy
+	}
+}
+
+// maxUpstreamClients 获取最大客户端缓存数量
+// 从配置中读取，无效值使用默认值
+func (s *httpUpstreamService) maxUpstreamClients() int {
+	if s.cfg == nil {
+		return defaultMaxUpstreamClients
+	}
+	if s.cfg.Gateway.MaxUpstreamClients > 0 {
+		return s.cfg.Gateway.MaxUpstreamClients
+	}
+	return defaultMaxUpstreamClients
+}
+
+// clientIdleTTL 获取客户端空闲回收阈值
+// 从配置中读取，无效值使用默认值
+func (s *httpUpstreamService) clientIdleTTL() time.Duration {
+	if s.cfg == nil {
+		return time.Duration(defaultClientIdleTTLSeconds) * time.Second
+	}
+	if s.cfg.Gateway.ClientIdleTTLSeconds > 0 {
+		return time.Duration(s.cfg.Gateway.ClientIdleTTLSeconds) * time.Second
+	}
+	return time.Duration(defaultClientIdleTTLSeconds) * time.Second
+}
+
+// resolvePoolSettings 解析连接池配置
+// 根据隔离策略和账户并发数动态调整连接池参数
+//
+// 参数:
+//   - isolation: 隔离模式
+//   - accountConcurrency: 账户并发限制
+//
+// 返回:
+//   - poolSettings: 连接池配置
+//
+// 说明:
+//   - 账户隔离模式下，连接池大小与账户并发数对应
+//   - 这确保了单账户不会占用过多连接资源
+func (s *httpUpstreamService) resolvePoolSettings(isolation string, accountConcurrency int) poolSettings {
+	settings := defaultPoolSettings(s.cfg)
+	// 账户隔离模式下，根据账户并发数调整连接池大小
+	if (isolation == config.ConnectionPoolIsolationAccount || isolation == config.ConnectionPoolIsolationAccountProxy) && accountConcurrency > 0 {
+		settings.maxIdleConns = accountConcurrency
+		settings.maxIdleConnsPerHost = accountConcurrency
+		settings.maxConnsPerHost = accountConcurrency
+	}
+	return settings
+}
+
+// buildPoolKey 构建连接池配置键
+// 用于检测配置变更，配置变更时需要重建客户端
+//
+// 参数:
+//   - isolation: 隔离模式
+//   - accountConcurrency: 账户并发限制
+//
+// 返回:
+//   - string: 配置键
+func (s *httpUpstreamService) buildPoolKey(isolation string, accountConcurrency int) string {
+	if isolation == config.ConnectionPoolIsolationAccount || isolation == config.ConnectionPoolIsolationAccountProxy {
+		if accountConcurrency > 0 {
+			return fmt.Sprintf("account:%d", accountConcurrency)
+		}
+	}
+	return "default"
+}
+
+// buildCacheKey 构建客户端缓存键
+// 根据隔离策略决定缓存键的组成
+//
+// 参数:
+//   - isolation: 隔离模式
+//   - proxyKey: 代理标识
+//   - accountID: 账户 ID
+//
+// 返回:
+//   - string: 缓存键
+//
+// 缓存键格式:
+//   - proxy 模式: "proxy:{proxyKey}"
+//   - account 模式: "account:{accountID}"
+//   - account_proxy 模式: "account:{accountID}|proxy:{proxyKey}"
+func buildCacheKey(isolation, proxyKey string, accountID int64) string {
+	switch isolation {
+	case config.ConnectionPoolIsolationAccount:
+		return fmt.Sprintf("account:%d", accountID)
+	case config.ConnectionPoolIsolationAccountProxy:
+		return fmt.Sprintf("account:%d|proxy:%s", accountID, proxyKey)
+	default:
+		return fmt.Sprintf("proxy:%s", proxyKey)
+	}
+}
+
+// normalizeProxyURL 标准化代理 URL
+// 处理空值和解析错误，返回标准化的键和解析后的 URL
+//
+// 参数:
+//   - raw: 原始代理 URL 字符串
+//
+// 返回:
+//   - string: 标准化的代理键（空返回 "direct"）
+//   - *url.URL: 解析后的 URL（空返回 nil）
+//   - error: 非空代理 URL 解析失败时返回错误（禁止回退到直连）
+func normalizeProxyURL(raw string) (string, *url.URL, error) {
+	_, parsed, err := proxyurl.Parse(raw)
+	if err != nil {
+		return "", nil, err
+	}
+	if parsed == nil {
+		return directProxyKey, nil, nil
+	}
+	// 规范化：小写 scheme/host，去除路径和查询参数
+	parsed.Scheme = strings.ToLower(parsed.Scheme)
+	parsed.Host = strings.ToLower(parsed.Host)
+	parsed.Path = ""
+	parsed.RawPath = ""
+	parsed.RawQuery = ""
+	parsed.Fragment = ""
+	parsed.ForceQuery = false
+	if hostname := parsed.Hostname(); hostname != "" {
+		port := parsed.Port()
+		if (parsed.Scheme == "http" && port == "80") || (parsed.Scheme == "https" && port == "443") {
+			port = ""
+		}
+		hostname = strings.ToLower(hostname)
+		if port != "" {
+			parsed.Host = net.JoinHostPort(hostname, port)
+		} else {
+			parsed.Host = hostname
+		}
+	}
+	return parsed.String(), parsed, nil
+}
+
+// defaultPoolSettings 获取默认连接池配置
+// 从全局配置中读取，无效值使用常量默认值
+//
+// 参数:
+//   - cfg: 全局配置
+//
+// 返回:
+//   - poolSettings: 连接池配置
+func defaultPoolSettings(cfg *config.Config) poolSettings {
+	maxIdleConns := defaultMaxIdleConns
+	maxIdleConnsPerHost := defaultMaxIdleConnsPerHost
+	maxConnsPerHost := defaultMaxConnsPerHost
+	idleConnTimeout := defaultIdleConnTimeout
+	responseHeaderTimeout := defaultResponseHeaderTimeout
+
+	if cfg != nil {
+		if cfg.Gateway.MaxIdleConns > 0 {
+			maxIdleConns = cfg.Gateway.MaxIdleConns
+		}
+		if cfg.Gateway.MaxIdleConnsPerHost > 0 {
+			maxIdleConnsPerHost = cfg.Gateway.MaxIdleConnsPerHost
+		}
+		if cfg.Gateway.MaxConnsPerHost >= 0 {
+			maxConnsPerHost = cfg.Gateway.MaxConnsPerHost
+		}
+		if cfg.Gateway.IdleConnTimeoutSeconds > 0 {
+			idleConnTimeout = time.Duration(cfg.Gateway.IdleConnTimeoutSeconds) * time.Second
+		}
+		if cfg.Gateway.ResponseHeaderTimeout > 0 {
+			responseHeaderTimeout = time.Duration(cfg.Gateway.ResponseHeaderTimeout) * time.Second
+		}
+	}
+
+	return poolSettings{
+		maxIdleConns:          maxIdleConns,
+		maxIdleConnsPerHost:   maxIdleConnsPerHost,
+		maxConnsPerHost:       maxConnsPerHost,
+		idleConnTimeout:       idleConnTimeout,
+		responseHeaderTimeout: responseHeaderTimeout,
+	}
+}
+
+// buildUpstreamTransport 构建上游请求的 Transport
+// 使用配置文件中的连接池参数，支持生产环境调优
+//
+// 参数:
+//   - settings: 连接池配置
+//   - proxyURL: 代理 URL（nil 表示直连）
+//
+// 返回:
+//   - *http.Transport: 配置好的 Transport 实例
+//   - error: 代理配置错误
+//
+// Transport 参数说明:
+//   - MaxIdleConns: 所有主机的最大空闲连接总数
+//   - MaxIdleConnsPerHost: 每主机最大空闲连接数（影响连接复用率）
+//   - MaxConnsPerHost: 每主机最大连接数（达到后新请求等待）
+//   - IdleConnTimeout: 空闲连接超时（超时后关闭）
+//   - ResponseHeaderTimeout: 等待响应头超时（不影响流式传输）
+func buildUpstreamTransport(settings poolSettings, proxyURL *url.URL) (*http.Transport, error) {
+	transport := &http.Transport{
+		MaxIdleConns:          settings.maxIdleConns,
+		MaxIdleConnsPerHost:   settings.maxIdleConnsPerHost,
+		MaxConnsPerHost:       settings.maxConnsPerHost,
+		IdleConnTimeout:       settings.idleConnTimeout,
+		ResponseHeaderTimeout: settings.responseHeaderTimeout,
+	}
+	if err := proxyutil.ConfigureTransportProxy(transport, proxyURL); err != nil {
+		return nil, err
+	}
+	return transport, nil
+}
+
+// buildUpstreamTransportWithTLSFingerprint 构建带 TLS 指纹伪装的 Transport
+// 使用 utls 库模拟 Claude CLI 的 TLS 指纹
+//
+// 参数:
+//   - settings: 连接池配置
+//   - proxyURL: 代理 URL（nil 表示直连）
+//   - profile: TLS 指纹配置
+//
+// 返回:
+//   - *http.Transport: 配置好的 Transport 实例
+//   - error: 配置错误
+//
+// 代理类型处理:
+//   - nil/空: 直连，使用 TLSFingerprintDialer
+//   - http/https: HTTP 代理，使用 HTTPProxyDialer（CONNECT 隧道 + utls 握手）
+//   - socks5: SOCKS5 代理，使用 SOCKS5ProxyDialer（SOCKS5 隧道 + utls 握手）
+func buildUpstreamTransportWithTLSFingerprint(settings poolSettings, proxyURL *url.URL, profile *tlsfingerprint.Profile) (*http.Transport, error) {
+	transport := &http.Transport{
+		MaxIdleConns:          settings.maxIdleConns,
+		MaxIdleConnsPerHost:   settings.maxIdleConnsPerHost,
+		MaxConnsPerHost:       settings.maxConnsPerHost,
+		IdleConnTimeout:       settings.idleConnTimeout,
+		ResponseHeaderTimeout: settings.responseHeaderTimeout,
+		// 禁用默认的 TLS，我们使用自定义的 DialTLSContext
+		ForceAttemptHTTP2: false,
+	}
+
+	// 根据代理类型选择合适的 TLS 指纹 Dialer
+	if proxyURL == nil {
+		// 直连：使用 TLSFingerprintDialer
+		slog.Debug("tls_fingerprint_transport_direct")
+		dialer := tlsfingerprint.NewDialer(profile, nil)
+		transport.DialTLSContext = dialer.DialTLSContext
+	} else {
+		scheme := strings.ToLower(proxyURL.Scheme)
+		switch scheme {
+		case "socks5", "socks5h":
+			// SOCKS5 代理：使用 SOCKS5ProxyDialer
+			slog.Debug("tls_fingerprint_transport_socks5", "proxy", proxyURL.Host)
+			socks5Dialer := tlsfingerprint.NewSOCKS5ProxyDialer(profile, proxyURL)
+			transport.DialTLSContext = socks5Dialer.DialTLSContext
+		case "http", "https":
+			// HTTP/HTTPS 代理：使用 HTTPProxyDialer（CONNECT 隧道）
+			slog.Debug("tls_fingerprint_transport_http_connect", "proxy", proxyURL.Host)
+			httpDialer := tlsfingerprint.NewHTTPProxyDialer(profile, proxyURL)
+			transport.DialTLSContext = httpDialer.DialTLSContext
+		default:
+			// 未知代理类型，回退到普通代理配置（无 TLS 指纹）
+			slog.Debug("tls_fingerprint_transport_unknown_scheme_fallback", "scheme", scheme)
+			if err := proxyutil.ConfigureTransportProxy(transport, proxyURL); err != nil {
+				return nil, err
+			}
+		}
+	}
+
+	return transport, nil
+}
+
+// trackedBody 带跟踪功能的响应体包装器
+// 在 Close 时执行回调，用于更新请求计数
+type trackedBody struct {
+	io.ReadCloser // 原始响应体
+	once          sync.Once
+	onClose       func() // 关闭时的回调函数
+}
+
+// Close 关闭响应体并执行回调
+// 使用 sync.Once 确保回调只执行一次
+func (b *trackedBody) Close() error {
+	err := b.ReadCloser.Close()
+	if b.onClose != nil {
+		b.once.Do(b.onClose)
+	}
+	return err
+}
+
+// wrapTrackedBody 包装响应体以跟踪关闭事件
+// 用于在响应体关闭时更新 inFlight 计数
+//
+// 参数:
+//   - body: 原始响应体
+//   - onClose: 关闭时的回调函数
+//
+// 返回:
+//   - io.ReadCloser: 包装后的响应体
+func wrapTrackedBody(body io.ReadCloser, onClose func()) io.ReadCloser {
+	if body == nil {
+		return body
+	}
+	return &trackedBody{ReadCloser: body, onClose: onClose}
+}

llm-gateway-competitors/sub2api-tar/backend/internal/repository/http_upstream_benchmark_test.go

@@ -0,0 +1,73 @@
+package repository
+
+import (
+	"net/http"
+	"net/url"
+	"testing"
+
+	"github.com/Wei-Shaw/sub2api/internal/config"
+)
+
+// httpClientSink 用于防止编译器优化掉基准测试中的赋值操作
+// 这是 Go 基准测试的常见模式，确保测试结果准确
+var httpClientSink *http.Client
+
+// BenchmarkHTTPUpstreamProxyClient 对比重复创建与复用代理客户端的开销
+//
+// 测试目的：
+// - 验证连接池复用相比每次新建的性能提升
+// - 量化内存分配差异
+//
+// 预期结果：
+// - "复用" 子测试应显著快于 "新建"
+// - "复用" 子测试应零内存分配
+func BenchmarkHTTPUpstreamProxyClient(b *testing.B) {
+	// 创建测试配置
+	cfg := &config.Config{
+		Gateway: config.GatewayConfig{ResponseHeaderTimeout: 300},
+	}
+	upstream := NewHTTPUpstream(cfg)
+	svc, ok := upstream.(*httpUpstreamService)
+	if !ok {
+		b.Fatalf("类型断言失败，无法获取 httpUpstreamService")
+	}
+
+	proxyURL := "http://127.0.0.1:8080"
+	b.ReportAllocs() // 报告内存分配统计
+
+	// 子测试：每次新建客户端
+	// 模拟未优化前的行为，每次请求都创建新的 http.Client
+	b.Run("新建", func(b *testing.B) {
+		parsedProxy, err := url.Parse(proxyURL)
+		if err != nil {
+			b.Fatalf("解析代理地址失败: %v", err)
+		}
+		settings := defaultPoolSettings(cfg)
+		for i := 0; i < b.N; i++ {
+			// 每次迭代都创建新客户端，包含 Transport 分配
+			transport, err := buildUpstreamTransport(settings, parsedProxy)
+			if err != nil {
+				b.Fatalf("创建 Transport 失败: %v", err)
+			}
+			httpClientSink = &http.Client{
+				Transport: transport,
+			}
+		}
+	})
+
+	// 子测试：复用已缓存的客户端
+	// 模拟优化后的行为，从缓存获取客户端
+	b.Run("复用", func(b *testing.B) {
+		// 预热：确保客户端已缓存
+		entry, err := svc.getOrCreateClient(proxyURL, 1, 1)
+		if err != nil {
+			b.Fatalf("getOrCreateClient: %v", err)
+		}
+		client := entry.client
+		b.ResetTimer() // 重置计时器，排除预热时间
+		for i := 0; i < b.N; i++ {
+			// 直接使用缓存的客户端，无内存分配
+			httpClientSink = client
+		}
+	})
+}

llm-gateway-competitors/sub2api-tar/backend/internal/repository/http_upstream_test.go

@@ -0,0 +1,301 @@
+package repository
+
+import (
+	"io"
+	"net/http"
+	"sync/atomic"
+	"testing"
+	"time"
+
+	"github.com/Wei-Shaw/sub2api/internal/config"
+	"github.com/stretchr/testify/require"
+	"github.com/stretchr/testify/suite"
+)
+
+// HTTPUpstreamSuite HTTP 上游服务测试套件
+// 使用 testify/suite 组织测试，支持 SetupTest 初始化
+type HTTPUpstreamSuite struct {
+	suite.Suite
+	cfg *config.Config // 测试用配置
+}
+
+// SetupTest 每个测试用例执行前的初始化
+// 创建空配置，各测试用例可按需覆盖
+func (s *HTTPUpstreamSuite) SetupTest() {
+	s.cfg = &config.Config{
+		Security: config.SecurityConfig{
+			URLAllowlist: config.URLAllowlistConfig{
+				AllowPrivateHosts: true,
+			},
+		},
+	}
+}
+
+// newService 创建测试用的 httpUpstreamService 实例
+// 返回具体类型以便访问内部状态进行断言
+func (s *HTTPUpstreamSuite) newService() *httpUpstreamService {
+	up := NewHTTPUpstream(s.cfg)
+	svc, ok := up.(*httpUpstreamService)
+	require.True(s.T(), ok, "expected *httpUpstreamService")
+	return svc
+}
+
+// TestDefaultResponseHeaderTimeout 测试默认响应头超时配置
+// 验证未配置时使用 300 秒默认值
+func (s *HTTPUpstreamSuite) TestDefaultResponseHeaderTimeout() {
+	svc := s.newService()
+	entry := mustGetOrCreateClient(s.T(), svc, "", 0, 0)
+	transport, ok := entry.client.Transport.(*http.Transport)
+	require.True(s.T(), ok, "expected *http.Transport")
+	require.Equal(s.T(), 300*time.Second, transport.ResponseHeaderTimeout, "ResponseHeaderTimeout mismatch")
+}
+
+// TestCustomResponseHeaderTimeout 测试自定义响应头超时配置
+// 验证配置值能正确应用到 Transport
+func (s *HTTPUpstreamSuite) TestCustomResponseHeaderTimeout() {
+	s.cfg.Gateway = config.GatewayConfig{ResponseHeaderTimeout: 7}
+	svc := s.newService()
+	entry := mustGetOrCreateClient(s.T(), svc, "", 0, 0)
+	transport, ok := entry.client.Transport.(*http.Transport)
+	require.True(s.T(), ok, "expected *http.Transport")
+	require.Equal(s.T(), 7*time.Second, transport.ResponseHeaderTimeout, "ResponseHeaderTimeout mismatch")
+}
+
+// TestGetOrCreateClient_InvalidURLReturnsError 测试无效代理 URL 返回错误
+// 验证解析失败时拒绝回退到直连模式
+func (s *HTTPUpstreamSuite) TestGetOrCreateClient_InvalidURLReturnsError() {
+	svc := s.newService()
+	_, err := svc.getClientEntry("://bad-proxy-url", 1, 1, false, false)
+	require.Error(s.T(), err, "expected error for invalid proxy URL")
+}
+
+// TestNormalizeProxyURL_Canonicalizes 测试代理 URL 规范化
+// 验证等价地址能够映射到同一缓存键
+func (s *HTTPUpstreamSuite) TestNormalizeProxyURL_Canonicalizes() {
+	key1, _, err1 := normalizeProxyURL("http://proxy.local:8080")
+	require.NoError(s.T(), err1)
+	key2, _, err2 := normalizeProxyURL("http://proxy.local:8080/")
+	require.NoError(s.T(), err2)
+	require.Equal(s.T(), key1, key2, "expected normalized proxy keys to match")
+}
+
+// TestAcquireClient_OverLimitReturnsError 测试连接池缓存上限保护
+// 验证超限且无可淘汰条目时返回错误
+func (s *HTTPUpstreamSuite) TestAcquireClient_OverLimitReturnsError() {
+	s.cfg.Gateway = config.GatewayConfig{
+		ConnectionPoolIsolation: config.ConnectionPoolIsolationAccountProxy,
+		MaxUpstreamClients:      1,
+	}
+	svc := s.newService()
+	entry1, err := svc.acquireClient("http://proxy-a:8080", 1, 1)
+	require.NoError(s.T(), err, "expected first acquire to succeed")
+	require.NotNil(s.T(), entry1, "expected entry")
+
+	entry2, err := svc.acquireClient("http://proxy-b:8080", 2, 1)
+	require.Error(s.T(), err, "expected error when cache limit reached")
+	require.Nil(s.T(), entry2, "expected nil entry when cache limit reached")
+}
+
+// TestDo_WithoutProxy_GoesDirect 测试无代理时直连
+// 验证空代理 URL 时请求直接发送到目标服务器
+func (s *HTTPUpstreamSuite) TestDo_WithoutProxy_GoesDirect() {
+	// 创建模拟上游服务器
+	upstream := newLocalTestServer(s.T(), http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+		_, _ = io.WriteString(w, "direct")
+	}))
+	s.T().Cleanup(upstream.Close)
+
+	up := NewHTTPUpstream(s.cfg)
+
+	req, err := http.NewRequest(http.MethodGet, upstream.URL+"/x", nil)
+	require.NoError(s.T(), err, "NewRequest")
+	resp, err := up.Do(req, "", 1, 1)
+	require.NoError(s.T(), err, "Do")
+	defer func() { _ = resp.Body.Close() }()
+	b, _ := io.ReadAll(resp.Body)
+	require.Equal(s.T(), "direct", string(b), "unexpected body")
+}
+
+// TestDo_WithHTTPProxy_UsesProxy 测试 HTTP 代理功能
+// 验证请求通过代理服务器转发，使用绝对 URI 格式
+func (s *HTTPUpstreamSuite) TestDo_WithHTTPProxy_UsesProxy() {
+	// 用于接收代理请求的通道
+	seen := make(chan string, 1)
+	// 创建模拟代理服务器
+	proxySrv := newLocalTestServer(s.T(), http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+		seen <- r.RequestURI // 记录请求 URI
+		_, _ = io.WriteString(w, "proxied")
+	}))
+	s.T().Cleanup(proxySrv.Close)
+
+	s.cfg.Gateway = config.GatewayConfig{ResponseHeaderTimeout: 1}
+	up := NewHTTPUpstream(s.cfg)
+
+	// 发送请求到外部地址，应通过代理
+	req, err := http.NewRequest(http.MethodGet, "http://example.com/test", nil)
+	require.NoError(s.T(), err, "NewRequest")
+	resp, err := up.Do(req, proxySrv.URL, 1, 1)
+	require.NoError(s.T(), err, "Do")
+	defer func() { _ = resp.Body.Close() }()
+	b, _ := io.ReadAll(resp.Body)
+	require.Equal(s.T(), "proxied", string(b), "unexpected body")
+
+	// 验证代理收到的是绝对 URI 格式（HTTP 代理规范要求）
+	select {
+	case uri := <-seen:
+		require.Equal(s.T(), "http://example.com/test", uri, "expected absolute-form request URI")
+	default:
+		require.Fail(s.T(), "expected proxy to receive request")
+	}
+}
+
+// TestDo_EmptyProxy_UsesDirect 测试空代理字符串
+// 验证空字符串代理等同于直连
+func (s *HTTPUpstreamSuite) TestDo_EmptyProxy_UsesDirect() {
+	upstream := newLocalTestServer(s.T(), http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+		_, _ = io.WriteString(w, "direct-empty")
+	}))
+	s.T().Cleanup(upstream.Close)
+
+	up := NewHTTPUpstream(s.cfg)
+	req, err := http.NewRequest(http.MethodGet, upstream.URL+"/y", nil)
+	require.NoError(s.T(), err, "NewRequest")
+	resp, err := up.Do(req, "", 1, 1)
+	require.NoError(s.T(), err, "Do with empty proxy")
+	defer func() { _ = resp.Body.Close() }()
+	b, _ := io.ReadAll(resp.Body)
+	require.Equal(s.T(), "direct-empty", string(b))
+}
+
+// TestAccountIsolation_DifferentAccounts 测试账户隔离模式
+// 验证不同账户使用独立的连接池
+func (s *HTTPUpstreamSuite) TestAccountIsolation_DifferentAccounts() {
+	s.cfg.Gateway = config.GatewayConfig{ConnectionPoolIsolation: config.ConnectionPoolIsolationAccount}
+	svc := s.newService()
+	// 同一代理，不同账户
+	entry1 := mustGetOrCreateClient(s.T(), svc, "http://proxy.local:8080", 1, 3)
+	entry2 := mustGetOrCreateClient(s.T(), svc, "http://proxy.local:8080", 2, 3)
+	require.NotSame(s.T(), entry1, entry2, "不同账号不应共享连接池")
+	require.Equal(s.T(), 2, len(svc.clients), "账号隔离应缓存两个客户端")
+}
+
+// TestAccountProxyIsolation_DifferentProxy 测试账户+代理组合隔离模式
+// 验证同一账户使用不同代理时创建独立连接池
+func (s *HTTPUpstreamSuite) TestAccountProxyIsolation_DifferentProxy() {
+	s.cfg.Gateway = config.GatewayConfig{ConnectionPoolIsolation: config.ConnectionPoolIsolationAccountProxy}
+	svc := s.newService()
+	// 同一账户，不同代理
+	entry1 := mustGetOrCreateClient(s.T(), svc, "http://proxy-a:8080", 1, 3)
+	entry2 := mustGetOrCreateClient(s.T(), svc, "http://proxy-b:8080", 1, 3)
+	require.NotSame(s.T(), entry1, entry2, "账号+代理隔离应区分不同代理")
+	require.Equal(s.T(), 2, len(svc.clients), "账号+代理隔离应缓存两个客户端")
+}
+
+// TestAccountModeProxyChangeClearsPool 测试账户模式下代理变更
+// 验证账户切换代理时清理旧连接池，避免复用错误代理
+func (s *HTTPUpstreamSuite) TestAccountModeProxyChangeClearsPool() {
+	s.cfg.Gateway = config.GatewayConfig{ConnectionPoolIsolation: config.ConnectionPoolIsolationAccount}
+	svc := s.newService()
+	// 同一账户，先后使用不同代理
+	entry1 := mustGetOrCreateClient(s.T(), svc, "http://proxy-a:8080", 1, 3)
+	entry2 := mustGetOrCreateClient(s.T(), svc, "http://proxy-b:8080", 1, 3)
+	require.NotSame(s.T(), entry1, entry2, "账号切换代理应创建新连接池")
+	require.Equal(s.T(), 1, len(svc.clients), "账号模式下应仅保留一个连接池")
+	require.False(s.T(), hasEntry(svc, entry1), "旧连接池应被清理")
+}
+
+// TestAccountConcurrencyOverridesPoolSettings 测试账户并发数覆盖连接池配置
+// 验证账户隔离模式下，连接池大小与账户并发数对应
+func (s *HTTPUpstreamSuite) TestAccountConcurrencyOverridesPoolSettings() {
+	s.cfg.Gateway = config.GatewayConfig{ConnectionPoolIsolation: config.ConnectionPoolIsolationAccount}
+	svc := s.newService()
+	// 账户并发数为 12
+	entry := mustGetOrCreateClient(s.T(), svc, "", 1, 12)
+	transport, ok := entry.client.Transport.(*http.Transport)
+	require.True(s.T(), ok, "expected *http.Transport")
+	// 连接池参数应与并发数一致
+	require.Equal(s.T(), 12, transport.MaxConnsPerHost, "MaxConnsPerHost mismatch")
+	require.Equal(s.T(), 12, transport.MaxIdleConns, "MaxIdleConns mismatch")
+	require.Equal(s.T(), 12, transport.MaxIdleConnsPerHost, "MaxIdleConnsPerHost mismatch")
+}
+
+// TestAccountConcurrencyFallbackToDefault 测试账户并发数为 0 时回退到默认配置
+// 验证未指定并发数时使用全局配置值
+func (s *HTTPUpstreamSuite) TestAccountConcurrencyFallbackToDefault() {
+	s.cfg.Gateway = config.GatewayConfig{
+		ConnectionPoolIsolation: config.ConnectionPoolIsolationAccount,
+		MaxIdleConns:            77,
+		MaxIdleConnsPerHost:     55,
+		MaxConnsPerHost:         66,
+	}
+	svc := s.newService()
+	// 账户并发数为 0，应使用全局配置
+	entry := mustGetOrCreateClient(s.T(), svc, "", 1, 0)
+	transport, ok := entry.client.Transport.(*http.Transport)
+	require.True(s.T(), ok, "expected *http.Transport")
+	require.Equal(s.T(), 66, transport.MaxConnsPerHost, "MaxConnsPerHost fallback mismatch")
+	require.Equal(s.T(), 77, transport.MaxIdleConns, "MaxIdleConns fallback mismatch")
+	require.Equal(s.T(), 55, transport.MaxIdleConnsPerHost, "MaxIdleConnsPerHost fallback mismatch")
+}
+
+// TestEvictOverLimitRemovesOldestIdle 测试超出数量限制时的 LRU 淘汰
+// 验证优先淘汰最久未使用的空闲客户端
+func (s *HTTPUpstreamSuite) TestEvictOverLimitRemovesOldestIdle() {
+	s.cfg.Gateway = config.GatewayConfig{
+		ConnectionPoolIsolation: config.ConnectionPoolIsolationAccountProxy,
+		MaxUpstreamClients:      2, // 最多缓存 2 个客户端
+	}
+	svc := s.newService()
+	// 创建两个客户端，设置不同的最后使用时间
+	entry1 := mustGetOrCreateClient(s.T(), svc, "http://proxy-a:8080", 1, 1)
+	entry2 := mustGetOrCreateClient(s.T(), svc, "http://proxy-b:8080", 2, 1)
+	atomic.StoreInt64(&entry1.lastUsed, time.Now().Add(-2*time.Hour).UnixNano()) // 最久
+	atomic.StoreInt64(&entry2.lastUsed, time.Now().Add(-time.Hour).UnixNano())
+	// 创建第三个客户端，触发淘汰
+	_ = mustGetOrCreateClient(s.T(), svc, "http://proxy-c:8080", 3, 1)
+
+	require.LessOrEqual(s.T(), len(svc.clients), 2, "应保持在缓存上限内")
+	require.False(s.T(), hasEntry(svc, entry1), "最久未使用的连接池应被清理")
+}
+
+// TestIdleTTLDoesNotEvictActive 测试活跃请求保护
+// 验证有进行中请求的客户端不会被空闲超时淘汰
+func (s *HTTPUpstreamSuite) TestIdleTTLDoesNotEvictActive() {
+	s.cfg.Gateway = config.GatewayConfig{
+		ConnectionPoolIsolation: config.ConnectionPoolIsolationAccount,
+		ClientIdleTTLSeconds:    1, // 1 秒空闲超时
+	}
+	svc := s.newService()
+	entry1 := mustGetOrCreateClient(s.T(), svc, "", 1, 1)
+	// 设置为很久之前使用，但有活跃请求
+	atomic.StoreInt64(&entry1.lastUsed, time.Now().Add(-2*time.Minute).UnixNano())
+	atomic.StoreInt64(&entry1.inFlight, 1) // 模拟有活跃请求
+	// 创建新客户端，触发淘汰检查
+	_, _ = svc.getOrCreateClient("", 2, 1)
+
+	require.True(s.T(), hasEntry(svc, entry1), "有活跃请求时不应回收")
+}
+
+// TestHTTPUpstreamSuite 运行测试套件
+func TestHTTPUpstreamSuite(t *testing.T) {
+	suite.Run(t, new(HTTPUpstreamSuite))
+}
+
+// mustGetOrCreateClient 测试辅助函数，调用 getOrCreateClient 并断言无错误
+func mustGetOrCreateClient(t *testing.T, svc *httpUpstreamService, proxyURL string, accountID int64, concurrency int) *upstreamClientEntry {
+	t.Helper()
+	entry, err := svc.getOrCreateClient(proxyURL, accountID, concurrency)
+	require.NoError(t, err, "getOrCreateClient(%q, %d, %d)", proxyURL, accountID, concurrency)
+	return entry
+}
+
+// hasEntry 检查客户端是否存在于缓存中
+// 辅助函数，用于验证淘汰逻辑
+func hasEntry(svc *httpUpstreamService, target *upstreamClientEntry) bool {
+	for _, entry := range svc.clients {
+		if entry == target {
+			return true
+		}
+	}
+	return false
+}

llm-gateway-competitors/sub2api-tar/backend/internal/repository/idempotency_repo.go

@@ -0,0 +1,237 @@
+package repository
+
+import (
+	"context"
+	"database/sql"
+	"errors"
+	"time"
+
+	dbent "github.com/Wei-Shaw/sub2api/ent"
+	"github.com/Wei-Shaw/sub2api/internal/service"
+)
+
+type idempotencyRepository struct {
+	sql sqlExecutor
+}
+
+func NewIdempotencyRepository(_ *dbent.Client, sqlDB *sql.DB) service.IdempotencyRepository {
+	return &idempotencyRepository{sql: sqlDB}
+}
+
+func (r *idempotencyRepository) CreateProcessing(ctx context.Context, record *service.IdempotencyRecord) (bool, error) {
+	if record == nil {
+		return false, nil
+	}
+	query := `
+		INSERT INTO idempotency_records (
+			scope, idempotency_key_hash, request_fingerprint, status, locked_until, expires_at
+		) VALUES ($1, $2, $3, $4, $5, $6)
+		ON CONFLICT (scope, idempotency_key_hash) DO NOTHING
+		RETURNING id, created_at, updated_at
+	`
+	var createdAt time.Time
+	var updatedAt time.Time
+	err := scanSingleRow(ctx, r.sql, query, []any{
+		record.Scope,
+		record.IdempotencyKeyHash,
+		record.RequestFingerprint,
+		record.Status,
+		record.LockedUntil,
+		record.ExpiresAt,
+	}, &record.ID, &createdAt, &updatedAt)
+	if errors.Is(err, sql.ErrNoRows) {
+		return false, nil
+	}
+	if err != nil {
+		return false, err
+	}
+	record.CreatedAt = createdAt
+	record.UpdatedAt = updatedAt
+	return true, nil
+}
+
+func (r *idempotencyRepository) GetByScopeAndKeyHash(ctx context.Context, scope, keyHash string) (*service.IdempotencyRecord, error) {
+	query := `
+		SELECT
+			id, scope, idempotency_key_hash, request_fingerprint, status, response_status,
+			response_body, error_reason, locked_until, expires_at, created_at, updated_at
+		FROM idempotency_records
+		WHERE scope = $1 AND idempotency_key_hash = $2
+	`
+	record := &service.IdempotencyRecord{}
+	var responseStatus sql.NullInt64
+	var responseBody sql.NullString
+	var errorReason sql.NullString
+	var lockedUntil sql.NullTime
+	err := scanSingleRow(ctx, r.sql, query, []any{scope, keyHash},
+		&record.ID,
+		&record.Scope,
+		&record.IdempotencyKeyHash,
+		&record.RequestFingerprint,
+		&record.Status,
+		&responseStatus,
+		&responseBody,
+		&errorReason,
+		&lockedUntil,
+		&record.ExpiresAt,
+		&record.CreatedAt,
+		&record.UpdatedAt,
+	)
+	if errors.Is(err, sql.ErrNoRows) {
+		return nil, nil
+	}
+	if err != nil {
+		return nil, err
+	}
+	if responseStatus.Valid {
+		v := int(responseStatus.Int64)
+		record.ResponseStatus = &v
+	}
+	if responseBody.Valid {
+		v := responseBody.String
+		record.ResponseBody = &v
+	}
+	if errorReason.Valid {
+		v := errorReason.String
+		record.ErrorReason = &v
+	}
+	if lockedUntil.Valid {
+		v := lockedUntil.Time
+		record.LockedUntil = &v
+	}
+	return record, nil
+}
+
+func (r *idempotencyRepository) TryReclaim(
+	ctx context.Context,
+	id int64,
+	fromStatus string,
+	now, newLockedUntil, newExpiresAt time.Time,
+) (bool, error) {
+	query := `
+		UPDATE idempotency_records
+		SET status = $2,
+			locked_until = $3,
+			error_reason = NULL,
+			updated_at = NOW(),
+			expires_at = $4
+		WHERE id = $1
+			AND status = $5
+			AND (locked_until IS NULL OR locked_until <= $6)
+	`
+	res, err := r.sql.ExecContext(ctx, query,
+		id,
+		service.IdempotencyStatusProcessing,
+		newLockedUntil,
+		newExpiresAt,
+		fromStatus,
+		now,
+	)
+	if err != nil {
+		return false, err
+	}
+	affected, err := res.RowsAffected()
+	if err != nil {
+		return false, err
+	}
+	return affected > 0, nil
+}
+
+func (r *idempotencyRepository) ExtendProcessingLock(
+	ctx context.Context,
+	id int64,
+	requestFingerprint string,
+	newLockedUntil,
+	newExpiresAt time.Time,
+) (bool, error) {
+	query := `
+		UPDATE idempotency_records
+		SET locked_until = $2,
+			expires_at = $3,
+			updated_at = NOW()
+		WHERE id = $1
+			AND status = $4
+			AND request_fingerprint = $5
+	`
+	res, err := r.sql.ExecContext(
+		ctx,
+		query,
+		id,
+		newLockedUntil,
+		newExpiresAt,
+		service.IdempotencyStatusProcessing,
+		requestFingerprint,
+	)
+	if err != nil {
+		return false, err
+	}
+	affected, err := res.RowsAffected()
+	if err != nil {
+		return false, err
+	}
+	return affected > 0, nil
+}
+
+func (r *idempotencyRepository) MarkSucceeded(ctx context.Context, id int64, responseStatus int, responseBody string, expiresAt time.Time) error {
+	query := `
+		UPDATE idempotency_records
+		SET status = $2,
+			response_status = $3,
+			response_body = $4,
+			error_reason = NULL,
+			locked_until = NULL,
+			expires_at = $5,
+			updated_at = NOW()
+		WHERE id = $1
+	`
+	_, err := r.sql.ExecContext(ctx, query,
+		id,
+		service.IdempotencyStatusSucceeded,
+		responseStatus,
+		responseBody,
+		expiresAt,
+	)
+	return err
+}
+
+func (r *idempotencyRepository) MarkFailedRetryable(ctx context.Context, id int64, errorReason string, lockedUntil, expiresAt time.Time) error {
+	query := `
+		UPDATE idempotency_records
+		SET status = $2,
+			error_reason = $3,
+			locked_until = $4,
+			expires_at = $5,
+			updated_at = NOW()
+		WHERE id = $1
+	`
+	_, err := r.sql.ExecContext(ctx, query,
+		id,
+		service.IdempotencyStatusFailedRetryable,
+		errorReason,
+		lockedUntil,
+		expiresAt,
+	)
+	return err
+}
+
+func (r *idempotencyRepository) DeleteExpired(ctx context.Context, now time.Time, limit int) (int64, error) {
+	if limit <= 0 {
+		limit = 500
+	}
+	query := `
+		WITH victims AS (
+			SELECT id
+			FROM idempotency_records
+			WHERE expires_at <= $1
+			ORDER BY expires_at ASC
+			LIMIT $2
+		)
+		DELETE FROM idempotency_records
+		WHERE id IN (SELECT id FROM victims)
+	`
+	res, err := r.sql.ExecContext(ctx, query, now, limit)
+	if err != nil {
+		return 0, err
+	}
+	return res.RowsAffected()
+}

llm-gateway-competitors/sub2api-tar/backend/internal/repository/idempotency_repo_integration_test.go

@@ -0,0 +1,149 @@
+//go:build integration
+
+package repository
+
+import (
+	"context"
+	"crypto/sha256"
+	"encoding/hex"
+	"testing"
+	"time"
+
+	"github.com/Wei-Shaw/sub2api/internal/service"
+	"github.com/stretchr/testify/require"
+)
+
+// hashedTestValue returns a unique SHA-256 hex string (64 chars) that fits VARCHAR(64) columns.
+func hashedTestValue(t *testing.T, prefix string) string {
+	t.Helper()
+	sum := sha256.Sum256([]byte(uniqueTestValue(t, prefix)))
+	return hex.EncodeToString(sum[:])
+}
+
+func TestIdempotencyRepo_CreateProcessing_CompeteSameKey(t *testing.T) {
+	tx := testTx(t)
+	repo := &idempotencyRepository{sql: tx}
+	ctx := context.Background()
+
+	now := time.Now().UTC()
+	record := &service.IdempotencyRecord{
+		Scope:              uniqueTestValue(t, "idem-scope-create"),
+		IdempotencyKeyHash: hashedTestValue(t, "idem-hash"),
+		RequestFingerprint: hashedTestValue(t, "idem-fp"),
+		Status:             service.IdempotencyStatusProcessing,
+		LockedUntil:        ptrTime(now.Add(30 * time.Second)),
+		ExpiresAt:          now.Add(24 * time.Hour),
+	}
+	owner, err := repo.CreateProcessing(ctx, record)
+	require.NoError(t, err)
+	require.True(t, owner)
+	require.NotZero(t, record.ID)
+
+	duplicate := &service.IdempotencyRecord{
+		Scope:              record.Scope,
+		IdempotencyKeyHash: record.IdempotencyKeyHash,
+		RequestFingerprint: hashedTestValue(t, "idem-fp-other"),
+		Status:             service.IdempotencyStatusProcessing,
+		LockedUntil:        ptrTime(now.Add(30 * time.Second)),
+		ExpiresAt:          now.Add(24 * time.Hour),
+	}
+	owner, err = repo.CreateProcessing(ctx, duplicate)
+	require.NoError(t, err)
+	require.False(t, owner, "same scope+key hash should be de-duplicated")
+}
+
+func TestIdempotencyRepo_TryReclaim_StatusAndLockWindow(t *testing.T) {
+	tx := testTx(t)
+	repo := &idempotencyRepository{sql: tx}
+	ctx := context.Background()
+
+	now := time.Now().UTC()
+	record := &service.IdempotencyRecord{
+		Scope:              uniqueTestValue(t, "idem-scope-reclaim"),
+		IdempotencyKeyHash: hashedTestValue(t, "idem-hash-reclaim"),
+		RequestFingerprint: hashedTestValue(t, "idem-fp-reclaim"),
+		Status:             service.IdempotencyStatusProcessing,
+		LockedUntil:        ptrTime(now.Add(10 * time.Second)),
+		ExpiresAt:          now.Add(24 * time.Hour),
+	}
+	owner, err := repo.CreateProcessing(ctx, record)
+	require.NoError(t, err)
+	require.True(t, owner)
+
+	require.NoError(t, repo.MarkFailedRetryable(
+		ctx,
+		record.ID,
+		"RETRYABLE_FAILURE",
+		now.Add(-2*time.Second),
+		now.Add(24*time.Hour),
+	))
+
+	newLockedUntil := now.Add(20 * time.Second)
+	reclaimed, err := repo.TryReclaim(
+		ctx,
+		record.ID,
+		service.IdempotencyStatusFailedRetryable,
+		now,
+		newLockedUntil,
+		now.Add(24*time.Hour),
+	)
+	require.NoError(t, err)
+	require.True(t, reclaimed, "failed_retryable + expired lock should allow reclaim")
+
+	got, err := repo.GetByScopeAndKeyHash(ctx, record.Scope, record.IdempotencyKeyHash)
+	require.NoError(t, err)
+	require.NotNil(t, got)
+	require.Equal(t, service.IdempotencyStatusProcessing, got.Status)
+	require.NotNil(t, got.LockedUntil)
+	require.True(t, got.LockedUntil.After(now))
+
+	require.NoError(t, repo.MarkFailedRetryable(
+		ctx,
+		record.ID,
+		"RETRYABLE_FAILURE",
+		now.Add(20*time.Second),
+		now.Add(24*time.Hour),
+	))
+
+	reclaimed, err = repo.TryReclaim(
+		ctx,
+		record.ID,
+		service.IdempotencyStatusFailedRetryable,
+		now,
+		now.Add(40*time.Second),
+		now.Add(24*time.Hour),
+	)
+	require.NoError(t, err)
+	require.False(t, reclaimed, "within lock window should not reclaim")
+}
+
+func TestIdempotencyRepo_StatusTransition_ToSucceeded(t *testing.T) {
+	tx := testTx(t)
+	repo := &idempotencyRepository{sql: tx}
+	ctx := context.Background()
+
+	now := time.Now().UTC()
+	record := &service.IdempotencyRecord{
+		Scope:              uniqueTestValue(t, "idem-scope-success"),
+		IdempotencyKeyHash: hashedTestValue(t, "idem-hash-success"),
+		RequestFingerprint: hashedTestValue(t, "idem-fp-success"),
+		Status:             service.IdempotencyStatusProcessing,
+		LockedUntil:        ptrTime(now.Add(10 * time.Second)),
+		ExpiresAt:          now.Add(24 * time.Hour),
+	}
+	owner, err := repo.CreateProcessing(ctx, record)
+	require.NoError(t, err)
+	require.True(t, owner)
+
+	require.NoError(t, repo.MarkSucceeded(ctx, record.ID, 200, `{"ok":true}`, now.Add(24*time.Hour)))
+
+	got, err := repo.GetByScopeAndKeyHash(ctx, record.Scope, record.IdempotencyKeyHash)
+	require.NoError(t, err)
+	require.NotNil(t, got)
+	require.Equal(t, service.IdempotencyStatusSucceeded, got.Status)
+	require.NotNil(t, got.ResponseStatus)
+	require.Equal(t, 200, *got.ResponseStatus)
+	require.NotNil(t, got.ResponseBody)
+	require.Equal(t, `{"ok":true}`, *got.ResponseBody)
+	require.Nil(t, got.LockedUntil)
+}

llm-gateway-competitors/sub2api-tar/backend/internal/repository/identity_cache.go

@@ -0,0 +1,75 @@
+package repository
+
+import (
+	"context"
+	"encoding/json"
+	"fmt"
+	"time"
+
+	"github.com/Wei-Shaw/sub2api/internal/service"
+	"github.com/redis/go-redis/v9"
+)
+
+const (
+	fingerprintKeyPrefix   = "fingerprint:"
+	fingerprintTTL         = 7 * 24 * time.Hour // 7天，配合每24小时懒续期可保持活跃账号永不过期
+	maskedSessionKeyPrefix = "masked_session:"
+	maskedSessionTTL       = 15 * time.Minute
+)
+
+// fingerprintKey generates the Redis key for account fingerprint cache.
+func fingerprintKey(accountID int64) string {
+	return fmt.Sprintf("%s%d", fingerprintKeyPrefix, accountID)
+}
+
+// maskedSessionKey generates the Redis key for masked session ID cache.
+func maskedSessionKey(accountID int64) string {
+	return fmt.Sprintf("%s%d", maskedSessionKeyPrefix, accountID)
+}
+
+type identityCache struct {
+	rdb *redis.Client
+}
+
+func NewIdentityCache(rdb *redis.Client) service.IdentityCache {
+	return &identityCache{rdb: rdb}
+}
+
+func (c *identityCache) GetFingerprint(ctx context.Context, accountID int64) (*service.Fingerprint, error) {
+	key := fingerprintKey(accountID)
+	val, err := c.rdb.Get(ctx, key).Result()
+	if err != nil {
+		return nil, err
+	}
+	var fp service.Fingerprint
+	if err := json.Unmarshal([]byte(val), &fp); err != nil {
+		return nil, err
+	}
+	return &fp, nil
+}
+
+func (c *identityCache) SetFingerprint(ctx context.Context, accountID int64, fp *service.Fingerprint) error {
+	key := fingerprintKey(accountID)
+	val, err := json.Marshal(fp)
+	if err != nil {
+		return err
+	}
+	return c.rdb.Set(ctx, key, val, fingerprintTTL).Err()
+}
+
+func (c *identityCache) GetMaskedSessionID(ctx context.Context, accountID int64) (string, error) {
+	key := maskedSessionKey(accountID)
+	val, err := c.rdb.Get(ctx, key).Result()
+	if err != nil {
+		if err == redis.Nil {
+			return "", nil
+		}
+		return "", err
+	}
+	return val, nil
+}
+
+func (c *identityCache) SetMaskedSessionID(ctx context.Context, accountID int64, sessionID string) error {
+	key := maskedSessionKey(accountID)
+	return c.rdb.Set(ctx, key, sessionID, maskedSessionTTL).Err()
+}

llm-gateway-competitors/sub2api-tar/backend/internal/repository/identity_cache_integration_test.go

@@ -0,0 +1,67 @@
+//go:build integration
+
+package repository
+
+import (
+	"errors"
+	"fmt"
+	"testing"
+	"time"
+
+	"github.com/Wei-Shaw/sub2api/internal/service"
+	"github.com/redis/go-redis/v9"
+	"github.com/stretchr/testify/require"
+	"github.com/stretchr/testify/suite"
+)
+
+type IdentityCacheSuite struct {
+	IntegrationRedisSuite
+	cache *identityCache
+}
+
+func (s *IdentityCacheSuite) SetupTest() {
+	s.IntegrationRedisSuite.SetupTest()
+	s.cache = NewIdentityCache(s.rdb).(*identityCache)
+}
+
+func (s *IdentityCacheSuite) TestGetFingerprint_Missing() {
+	_, err := s.cache.GetFingerprint(s.ctx, 1)
+	require.True(s.T(), errors.Is(err, redis.Nil), "expected redis.Nil for missing fingerprint")
+}
+
+func (s *IdentityCacheSuite) TestSetAndGetFingerprint() {
+	fp := &service.Fingerprint{ClientID: "c1", UserAgent: "ua"}
+	require.NoError(s.T(), s.cache.SetFingerprint(s.ctx, 1, fp), "SetFingerprint")
+	gotFP, err := s.cache.GetFingerprint(s.ctx, 1)
+	require.NoError(s.T(), err, "GetFingerprint")
+	require.Equal(s.T(), "c1", gotFP.ClientID)
+	require.Equal(s.T(), "ua", gotFP.UserAgent)
+}
+
+func (s *IdentityCacheSuite) TestFingerprint_TTL() {
+	fp := &service.Fingerprint{ClientID: "c1", UserAgent: "ua"}
+	require.NoError(s.T(), s.cache.SetFingerprint(s.ctx, 2, fp))
+
+	fpKey := fmt.Sprintf("%s%d", fingerprintKeyPrefix, 2)
+	ttl, err := s.rdb.TTL(s.ctx, fpKey).Result()
+	require.NoError(s.T(), err, "TTL fpKey")
+	s.AssertTTLWithin(ttl, 1*time.Second, fingerprintTTL)
+}
+
+func (s *IdentityCacheSuite) TestGetFingerprint_JSONCorruption() {
+	fpKey := fmt.Sprintf("%s%d", fingerprintKeyPrefix, 999)
+	require.NoError(s.T(), s.rdb.Set(s.ctx, fpKey, "invalid-json-data", 1*time.Minute).Err(), "Set invalid JSON")
+
+	_, err := s.cache.GetFingerprint(s.ctx, 999)
+	require.Error(s.T(), err, "expected error for corrupted JSON")
+	require.False(s.T(), errors.Is(err, redis.Nil), "expected decoding error, not redis.Nil")
+}
+
+func (s *IdentityCacheSuite) TestSetFingerprint_Nil() {
+	err := s.cache.SetFingerprint(s.ctx, 100, nil)
+	require.NoError(s.T(), err, "SetFingerprint(nil) should succeed")
+}
+
+func TestIdentityCacheSuite(t *testing.T) {
+	suite.Run(t, new(IdentityCacheSuite))
+}

llm-gateway-competitors/sub2api-tar/backend/internal/repository/identity_cache_test.go

@@ -0,0 +1,46 @@
+//go:build unit
+
+package repository
+
+import (
+	"math"
+	"testing"
+
+	"github.com/stretchr/testify/require"
+)
+
+func TestFingerprintKey(t *testing.T) {
+	tests := []struct {
+		name      string
+		accountID int64
+		expected  string
+	}{
+		{
+			name:      "normal_account_id",
+			accountID: 123,
+			expected:  "fingerprint:123",
+		},
+		{
+			name:      "zero_account_id",
+			accountID: 0,
+			expected:  "fingerprint:0",
+		},
+		{
+			name:      "negative_account_id",
+			accountID: -1,
+			expected:  "fingerprint:-1",
+		},
+		{
+			name:      "max_int64",
+			accountID: math.MaxInt64,
+			expected:  "fingerprint:9223372036854775807",
+		},
+	}
+
+	for _, tc := range tests {
+		t.Run(tc.name, func(t *testing.T) {
+			got := fingerprintKey(tc.accountID)
+			require.Equal(t, tc.expected, got)
+		})
+	}
+}

llm-gateway-competitors/sub2api-tar/backend/internal/repository/inprocess_transport_test.go

@@ -0,0 +1,63 @@
+package repository
+
+import (
+	"bytes"
+	"io"
+	"net"
+	"net/http"
+	"net/http/httptest"
+	"sync"
+	"testing"
+)
+
+type roundTripFunc func(*http.Request) (*http.Response, error)
+
+func (f roundTripFunc) RoundTrip(r *http.Request) (*http.Response, error) { return f(r) }
+
+// newInProcessTransport adapts an http.HandlerFunc into an http.RoundTripper without opening sockets.
+// It captures the request body (if any) and then rewinds it before invoking the handler.
+func newInProcessTransport(handler http.HandlerFunc, capture func(r *http.Request, body []byte)) http.RoundTripper {
+	return roundTripFunc(func(r *http.Request) (*http.Response, error) {
+		var body []byte
+		if r.Body != nil {
+			body, _ = io.ReadAll(r.Body)
+			_ = r.Body.Close()
+			r.Body = io.NopCloser(bytes.NewReader(body))
+		}
+		if capture != nil {
+			capture(r, body)
+		}
+
+		rec := httptest.NewRecorder()
+		handler(rec, r)
+		return rec.Result(), nil
+	})
+}
+
+var (
+	canListenOnce sync.Once
+	canListen     bool
+	canListenErr  error
+)
+
+func localListenerAvailable() bool {
+	canListenOnce.Do(func() {
+		ln, err := net.Listen("tcp", "127.0.0.1:0")
+		if err != nil {
+			canListenErr = err
+			canListen = false
+			return
+		}
+		_ = ln.Close()
+		canListen = true
+	})
+	return canListen
+}
+
+func newLocalTestServer(tb testing.TB, handler http.Handler) *httptest.Server {
+	tb.Helper()
+	if !localListenerAvailable() {
+		tb.Skipf("local listeners are not permitted in this environment: %v", canListenErr)
+	}
+	return httptest.NewServer(handler)
+}

llm-gateway-competitors/sub2api-tar/backend/internal/repository/integration_harness_test.go

@@ -0,0 +1,408 @@
+//go:build integration
+
+package repository
+
+import (
+	"context"
+	"database/sql"
+	"fmt"
+	"log"
+	"os"
+	"os/exec"
+	"strconv"
+	"strings"
+	"sync/atomic"
+	"testing"
+	"time"
+
+	dbent "github.com/Wei-Shaw/sub2api/ent"
+	_ "github.com/Wei-Shaw/sub2api/ent/runtime"
+	"github.com/Wei-Shaw/sub2api/internal/pkg/timezone"
+	"github.com/stretchr/testify/require"
+	"github.com/stretchr/testify/suite"
+
+	"entgo.io/ent/dialect"
+	entsql "entgo.io/ent/dialect/sql"
+	_ "github.com/lib/pq"
+	redisclient "github.com/redis/go-redis/v9"
+	tcpostgres "github.com/testcontainers/testcontainers-go/modules/postgres"
+	tcredis "github.com/testcontainers/testcontainers-go/modules/redis"
+)
+
+const (
+	redisImageTag    = "redis:8.4-alpine"
+	postgresImageTag = "postgres:18.1-alpine3.23"
+)
+
+var (
+	integrationDB        *sql.DB
+	integrationEntClient *dbent.Client
+	integrationRedis     *redisclient.Client
+
+	redisNamespaceSeq uint64
+)
+
+func TestMain(m *testing.M) {
+	ctx := context.Background()
+
+	if err := timezone.Init("UTC"); err != nil {
+		log.Printf("failed to init timezone: %v", err)
+		os.Exit(1)
+	}
+
+	if !dockerIsAvailable(ctx) {
+		// In CI we expect Docker to be available so integration tests should fail loudly.
+		if os.Getenv("CI") != "" {
+			log.Printf("docker is not available (CI=true); failing integration tests")
+			os.Exit(1)
+		}
+		log.Printf("docker is not available; skipping integration tests (start Docker to enable)")
+		os.Exit(0)
+	}
+
+	postgresImage := selectDockerImage(ctx, postgresImageTag)
+	pgContainer, err := tcpostgres.Run(
+		ctx,
+		postgresImage,
+		tcpostgres.WithDatabase("sub2api_test"),
+		tcpostgres.WithUsername("postgres"),
+		tcpostgres.WithPassword("postgres"),
+		tcpostgres.BasicWaitStrategies(),
+	)
+	if err != nil {
+		log.Printf("failed to start postgres container: %v", err)
+		os.Exit(1)
+	}
+	defer func() { _ = pgContainer.Terminate(ctx) }()
+
+	redisContainer, err := tcredis.Run(
+		ctx,
+		redisImageTag,
+	)
+	if err != nil {
+		log.Printf("failed to start redis container: %v", err)
+		os.Exit(1)
+	}
+	defer func() { _ = redisContainer.Terminate(ctx) }()
+
+	dsn, err := pgContainer.ConnectionString(ctx, "sslmode=disable", "TimeZone=UTC")
+	if err != nil {
+		log.Printf("failed to get postgres dsn: %v", err)
+		os.Exit(1)
+	}
+
+	integrationDB, err = openSQLWithRetry(ctx, dsn, 30*time.Second)
+	if err != nil {
+		log.Printf("failed to open sql db: %v", err)
+		os.Exit(1)
+	}
+	if err := ApplyMigrations(ctx, integrationDB); err != nil {
+		log.Printf("failed to apply db migrations: %v", err)
+		os.Exit(1)
+	}
+
+	// 创建 ent client 用于集成测试
+	drv := entsql.OpenDB(dialect.Postgres, integrationDB)
+	integrationEntClient = dbent.NewClient(dbent.Driver(drv))
+
+	redisHost, err := redisContainer.Host(ctx)
+	if err != nil {
+		log.Printf("failed to get redis host: %v", err)
+		os.Exit(1)
+	}
+	redisPort, err := redisContainer.MappedPort(ctx, "6379/tcp")
+	if err != nil {
+		log.Printf("failed to get redis port: %v", err)
+		os.Exit(1)
+	}
+
+	integrationRedis = redisclient.NewClient(&redisclient.Options{
+		Addr: fmt.Sprintf("%s:%d", redisHost, redisPort.Int()),
+		DB:   0,
+	})
+	if err := integrationRedis.Ping(ctx).Err(); err != nil {
+		log.Printf("failed to ping redis: %v", err)
+		os.Exit(1)
+	}
+
+	code := m.Run()
+
+	_ = integrationEntClient.Close()
+	_ = integrationRedis.Close()
+	_ = integrationDB.Close()
+
+	os.Exit(code)
+}
+
+func dockerIsAvailable(ctx context.Context) bool {
+	cmd := exec.CommandContext(ctx, "docker", "info")
+	cmd.Env = os.Environ()
+	return cmd.Run() == nil
+}
+
+func selectDockerImage(ctx context.Context, preferred string) string {
+	if dockerImageExists(ctx, preferred) {
+		return preferred
+	}
+
+	return preferred
+}
+
+func dockerImageExists(ctx context.Context, image string) bool {
+	cmd := exec.CommandContext(ctx, "docker", "image", "inspect", image)
+	cmd.Env = os.Environ()
+	cmd.Stdout = nil
+	cmd.Stderr = nil
+	return cmd.Run() == nil
+}
+
+func openSQLWithRetry(ctx context.Context, dsn string, timeout time.Duration) (*sql.DB, error) {
+	deadline := time.Now().Add(timeout)
+	var lastErr error
+
+	for time.Now().Before(deadline) {
+		db, err := sql.Open("postgres", dsn)
+		if err != nil {
+			lastErr = err
+			time.Sleep(250 * time.Millisecond)
+			continue
+		}
+
+		if err := pingWithTimeout(ctx, db, 2*time.Second); err != nil {
+			lastErr = err
+			_ = db.Close()
+			time.Sleep(250 * time.Millisecond)
+			continue
+		}
+
+		return db, nil
+	}
+
+	return nil, fmt.Errorf("db not ready after %s: %w", timeout, lastErr)
+}
+
+func pingWithTimeout(ctx context.Context, db *sql.DB, timeout time.Duration) error {
+	pingCtx, cancel := context.WithTimeout(ctx, timeout)
+	defer cancel()
+	return db.PingContext(pingCtx)
+}
+
+func testTx(t *testing.T) *sql.Tx {
+	t.Helper()
+
+	tx, err := integrationDB.BeginTx(context.Background(), nil)
+	require.NoError(t, err, "begin tx")
+	t.Cleanup(func() {
+		_ = tx.Rollback()
+	})
+	return tx
+}
+
+// testEntClient 返回全局的 ent client，用于测试需要内部管理事务的代码（如 Create/Update 方法）。
+// 注意：此 client 的操作会真正写入数据库，测试结束后不会自动回滚。
+func testEntClient(t *testing.T) *dbent.Client {
+	t.Helper()
+	return integrationEntClient
+}
+
+// testEntTx 返回一个 ent 事务，用于需要事务隔离的测试。
+// 测试结束后会自动回滚，不会影响数据库状态。
+func testEntTx(t *testing.T) *dbent.Tx {
+	t.Helper()
+
+	tx, err := integrationEntClient.Tx(context.Background())
+	require.NoError(t, err, "begin ent tx")
+	t.Cleanup(func() {
+		_ = tx.Rollback()
+	})
+	return tx
+}
+
+// testEntSQLTx 已弃用：不要在新测试中使用此函数。
+// 基于 *sql.Tx 创建的 ent client 在调用 client.Tx() 时会 panic。
+// 对于需要测试内部使用事务的代码，请使用 testEntClient。
+// 对于需要事务隔离的测试，请使用 testEntTx。
+//
+// Deprecated: Use testEntClient or testEntTx instead.
+func testEntSQLTx(t *testing.T) (*dbent.Client, *sql.Tx) {
+	t.Helper()
+
+	// 直接失败，避免旧测试误用导致的事务嵌套 panic。
+	t.Fatalf("testEntSQLTx 已弃用：请使用 testEntClient 或 testEntTx")
+	return nil, nil
+}
+
+func testRedis(t *testing.T) *redisclient.Client {
+	t.Helper()
+
+	prefix := fmt.Sprintf(
+		"it:%s:%d:%d:",
+		sanitizeRedisNamespace(t.Name()),
+		time.Now().UnixNano(),
+		atomic.AddUint64(&redisNamespaceSeq, 1),
+	)
+
+	opts := *integrationRedis.Options()
+	rdb := redisclient.NewClient(&opts)
+	rdb.AddHook(prefixHook{prefix: prefix})
+
+	t.Cleanup(func() {
+		ctx := context.Background()
+
+		var cursor uint64
+		for {
+			keys, nextCursor, err := integrationRedis.Scan(ctx, cursor, prefix+"*", 500).Result()
+			require.NoError(t, err, "scan redis keys for cleanup")
+			if len(keys) > 0 {
+				require.NoError(t, integrationRedis.Unlink(ctx, keys...).Err(), "unlink redis keys for cleanup")
+			}
+
+			cursor = nextCursor
+			if cursor == 0 {
+				break
+			}
+		}
+
+		_ = rdb.Close()
+	})
+
+	return rdb
+}
+
+func assertTTLWithin(t *testing.T, ttl time.Duration, min, max time.Duration) {
+	t.Helper()
+	require.GreaterOrEqual(t, ttl, min, "ttl should be >= min")
+	require.LessOrEqual(t, ttl, max, "ttl should be <= max")
+}
+
+func sanitizeRedisNamespace(name string) string {
+	name = strings.ReplaceAll(name, "/", "_")
+	name = strings.ReplaceAll(name, " ", "_")
+	return name
+}
+
+type prefixHook struct {
+	prefix string
+}
+
+func (h prefixHook) DialHook(next redisclient.DialHook) redisclient.DialHook { return next }
+
+func (h prefixHook) ProcessHook(next redisclient.ProcessHook) redisclient.ProcessHook {
+	return func(ctx context.Context, cmd redisclient.Cmder) error {
+		h.prefixCmd(cmd)
+		return next(ctx, cmd)
+	}
+}
+
+func (h prefixHook) ProcessPipelineHook(next redisclient.ProcessPipelineHook) redisclient.ProcessPipelineHook {
+	return func(ctx context.Context, cmds []redisclient.Cmder) error {
+		for _, cmd := range cmds {
+			h.prefixCmd(cmd)
+		}
+		return next(ctx, cmds)
+	}
+}
+
+func (h prefixHook) prefixCmd(cmd redisclient.Cmder) {
+	args := cmd.Args()
+	if len(args) < 2 {
+		return
+	}
+
+	prefixOne := func(i int) {
+		if i < 0 || i >= len(args) {
+			return
+		}
+
+		switch v := args[i].(type) {
+		case string:
+			if v != "" && !strings.HasPrefix(v, h.prefix) {
+				args[i] = h.prefix + v
+			}
+		case []byte:
+			s := string(v)
+			if s != "" && !strings.HasPrefix(s, h.prefix) {
+				args[i] = []byte(h.prefix + s)
+			}
+		}
+	}
+
+	switch strings.ToLower(cmd.Name()) {
+	case "get", "set", "setnx", "setex", "psetex", "incr", "decr", "incrby", "expire", "pexpire", "ttl", "pttl",
+		"hgetall", "hget", "hset", "hdel", "hincrbyfloat", "exists",
+		"zadd", "zcard", "zrange", "zrangebyscore", "zrem", "zremrangebyscore", "zrevrange", "zrevrangebyscore", "zscore":
+		prefixOne(1)
+	case "del", "unlink":
+		for i := 1; i < len(args); i++ {
+			prefixOne(i)
+		}
+	case "eval", "evalsha", "eval_ro", "evalsha_ro":
+		if len(args) < 3 {
+			return
+		}
+		numKeys, err := strconv.Atoi(fmt.Sprint(args[2]))
+		if err != nil || numKeys <= 0 {
+			return
+		}
+		for i := 0; i < numKeys && 3+i < len(args); i++ {
+			prefixOne(3 + i)
+		}
+	case "scan":
+		for i := 2; i+1 < len(args); i++ {
+			if strings.EqualFold(fmt.Sprint(args[i]), "match") {
+				prefixOne(i + 1)
+				break
+			}
+		}
+	}
+}
+
+// IntegrationRedisSuite provides a base suite for Redis integration tests.
+// Embedding suites should call SetupTest to initialize ctx and rdb.
+type IntegrationRedisSuite struct {
+	suite.Suite
+	ctx context.Context
+	rdb *redisclient.Client
+}
+
+// SetupTest initializes ctx and rdb for each test method.
+func (s *IntegrationRedisSuite) SetupTest() {
+	s.ctx = context.Background()
+	s.rdb = testRedis(s.T())
+}
+
+// RequireNoError is a convenience method wrapping require.NoError with s.T().
+func (s *IntegrationRedisSuite) RequireNoError(err error, msgAndArgs ...any) {
+	s.T().Helper()
+	require.NoError(s.T(), err, msgAndArgs...)
+}
+
+// AssertTTLWithin asserts that ttl is within [min, max].
+func (s *IntegrationRedisSuite) AssertTTLWithin(ttl, min, max time.Duration) {
+	s.T().Helper()
+	assertTTLWithin(s.T(), ttl, min, max)
+}
+
+// IntegrationDBSuite provides a base suite for DB integration tests.
+// Embedding suites should call SetupTest to initialize ctx and client.
+type IntegrationDBSuite struct {
+	suite.Suite
+	ctx    context.Context
+	client *dbent.Client
+	tx     *dbent.Tx
+}
+
+// SetupTest initializes ctx and client for each test method.
+func (s *IntegrationDBSuite) SetupTest() {
+	s.ctx = context.Background()
+	// 统一使用 ent.Tx，确保每个测试都有独立事务并自动回滚。
+	tx := testEntTx(s.T())
+	s.tx = tx
+	s.client = tx.Client()
+}
+
+// RequireNoError is a convenience method wrapping require.NoError with s.T().
+func (s *IntegrationDBSuite) RequireNoError(err error, msgAndArgs ...any) {
+	s.T().Helper()
+	require.NoError(s.T(), err, msgAndArgs...)
+}

llm-gateway-competitors/sub2api-tar/backend/internal/repository/migrations_runner.go

@@ -0,0 +1,434 @@
+package repository
+
+import (
+	"context"
+	"crypto/sha256"
+	"database/sql"
+	"encoding/hex"
+	"errors"
+	"fmt"
+	"io/fs"
+	"sort"
+	"strings"
+	"time"
+
+	"github.com/Wei-Shaw/sub2api/migrations"
+)
+
+// schemaMigrationsTableDDL 定义迁移记录表的 DDL。
+// 该表用于跟踪已应用的迁移文件及其校验和。
+// - filename: 迁移文件名，作为主键唯一标识每个迁移
+// - checksum: 文件内容的 SHA256 哈希值，用于检测迁移文件是否被篡改
+// - applied_at: 迁移应用时间戳
+const schemaMigrationsTableDDL = `
+CREATE TABLE IF NOT EXISTS schema_migrations (
+	filename   TEXT PRIMARY KEY,
+	checksum   TEXT NOT NULL,
+	applied_at TIMESTAMPTZ NOT NULL DEFAULT NOW()
+);
+`
+
+const atlasSchemaRevisionsTableDDL = `
+CREATE TABLE IF NOT EXISTS atlas_schema_revisions (
+	version TEXT PRIMARY KEY,
+	description TEXT NOT NULL,
+	type INTEGER NOT NULL,
+	applied INTEGER NOT NULL DEFAULT 0,
+	total INTEGER NOT NULL DEFAULT 0,
+	executed_at TIMESTAMPTZ NOT NULL DEFAULT NOW(),
+	execution_time BIGINT NOT NULL DEFAULT 0,
+	error TEXT NULL,
+	error_stmt TEXT NULL,
+	hash TEXT NOT NULL DEFAULT '',
+	partial_hashes TEXT[] NULL,
+	operator_version TEXT NULL
+);
+`
+
+// migrationsAdvisoryLockID 是用于序列化迁移操作的 PostgreSQL Advisory Lock ID。
+// 在多实例部署场景下，该锁确保同一时间只有一个实例执行迁移。
+// 任何稳定的 int64 值都可以，只要不与同一数据库中的其他锁冲突即可。
+const migrationsAdvisoryLockID int64 = 694208311321144027
+const migrationsLockRetryInterval = 500 * time.Millisecond
+const nonTransactionalMigrationSuffix = "_notx.sql"
+
+type migrationChecksumCompatibilityRule struct {
+	fileChecksum       string
+	acceptedDBChecksum map[string]struct{}
+}
+
+// migrationChecksumCompatibilityRules 仅用于兼容历史上误修改过的迁移文件 checksum。
+// 规则必须同时匹配「迁移名 + 当前文件 checksum + 历史库 checksum」才会放行，避免放宽全局校验。
+var migrationChecksumCompatibilityRules = map[string]migrationChecksumCompatibilityRule{
+	"054_drop_legacy_cache_columns.sql": {
+		fileChecksum: "82de761156e03876653e7a6a4eee883cd927847036f779b0b9f34c42a8af7a7d",
+		acceptedDBChecksum: map[string]struct{}{
+			"182c193f3359946cf094090cd9e57d5c3fd9abaffbc1e8fc378646b8a6fa12b4": {},
+		},
+	},
+	"061_add_usage_log_request_type.sql": {
+		fileChecksum: "66207e7aa5dd0429c2e2c0fabdaf79783ff157fa0af2e81adff2ee03790ec65c",
+		acceptedDBChecksum: map[string]struct{}{
+			"08a248652cbab7cfde147fc6ef8cda464f2477674e20b718312faa252e0481c0": {},
+			"222b4a09c797c22e5922b6b172327c824f5463aaa8760e4f621bc5c22e2be0f3": {},
+		},
+	},
+}
+
+// ApplyMigrations 将嵌入的 SQL 迁移文件应用到指定的数据库。
+//
+// 该函数可以在每次应用启动时安全调用：
+// - 已应用的迁移会被自动跳过（通过校验 filename 判断）
+// - 如果迁移文件内容被修改（checksum 不匹配），会返回错误
+// - 使用 PostgreSQL Advisory Lock 确保多实例并发安全
+//
+// 参数：
+//   - ctx: 上下文，用于超时控制和取消
+//   - db: 数据库连接
+//
+// 返回：
+//   - error: 迁移过程中的任何错误
+func ApplyMigrations(ctx context.Context, db *sql.DB) error {
+	if db == nil {
+		return errors.New("nil sql db")
+	}
+	return applyMigrationsFS(ctx, db, migrations.FS)
+}
+
+// applyMigrationsFS 是迁移执行的核心实现。
+// 它从指定的文件系统读取 SQL 迁移文件并按顺序应用。
+//
+// 迁移执行流程：
+//  1. 获取 PostgreSQL Advisory Lock，防止多实例并发迁移
+//  2. 确保 schema_migrations 表存在
+//  3. 按文件名排序读取所有 .sql 文件
+//  4. 对于每个迁移文件：
+//     - 计算文件内容的 SHA256 校验和
+//     - 检查该迁移是否已应用（通过 filename 查询）
+//     - 如果已应用，验证校验和是否匹配
+//     - 如果未应用，在事务中执行迁移并记录
+//  5. 释放 Advisory Lock
+//
+// 参数：
+//   - ctx: 上下文
+//   - db: 数据库连接
+//   - fsys: 包含迁移文件的文件系统（通常是 embed.FS）
+func applyMigrationsFS(ctx context.Context, db *sql.DB, fsys fs.FS) error {
+	if db == nil {
+		return errors.New("nil sql db")
+	}
+
+	// 获取分布式锁，确保多实例部署时只有一个实例执行迁移。
+	// 这是 PostgreSQL 特有的 Advisory Lock 机制。
+	if err := pgAdvisoryLock(ctx, db); err != nil {
+		return err
+	}
+	defer func() {
+		// 无论迁移是否成功，都要释放锁。
+		// 使用 context.Background() 确保即使原 ctx 已取消也能释放锁。
+		_ = pgAdvisoryUnlock(context.Background(), db)
+	}()
+
+	// 创建迁移记录表（如果不存在）。
+	// 该表记录所有已应用的迁移及其校验和。
+	if _, err := db.ExecContext(ctx, schemaMigrationsTableDDL); err != nil {
+		return fmt.Errorf("create schema_migrations: %w", err)
+	}
+
+	// 自动对齐 Atlas 基线（如果检测到 legacy schema_migrations 且缺失 atlas_schema_revisions）。
+	if err := ensureAtlasBaselineAligned(ctx, db, fsys); err != nil {
+		return err
+	}
+
+	// 获取所有 .sql 迁移文件并按文件名排序。
+	// 命名规范：使用零填充数字前缀（如 001_init.sql, 002_add_users.sql）。
+	files, err := fs.Glob(fsys, "*.sql")
+	if err != nil {
+		return fmt.Errorf("list migrations: %w", err)
+	}
+	sort.Strings(files) // 确保按文件名顺序执行迁移
+
+	for _, name := range files {
+		// 读取迁移文件内容
+		contentBytes, err := fs.ReadFile(fsys, name)
+		if err != nil {
+			return fmt.Errorf("read migration %s: %w", name, err)
+		}
+
+		content := strings.TrimSpace(string(contentBytes))
+		if content == "" {
+			continue // 跳过空文件
+		}
+
+		// 计算文件内容的 SHA256 校验和，用于检测文件是否被修改。
+		// 这是一种防篡改机制：如果有人修改了已应用的迁移文件，系统会拒绝启动。
+		sum := sha256.Sum256([]byte(content))
+		checksum := hex.EncodeToString(sum[:])
+
+		// 检查该迁移是否已经应用
+		var existing string
+		rowErr := db.QueryRowContext(ctx, "SELECT checksum FROM schema_migrations WHERE filename = $1", name).Scan(&existing)
+		if rowErr == nil {
+			// 迁移已应用，验证校验和是否匹配
+			if existing != checksum {
+				// 兼容特定历史误改场景（仅白名单规则），其余仍保持严格不可变约束。
+				if isMigrationChecksumCompatible(name, existing, checksum) {
+					continue
+				}
+				// 校验和不匹配意味着迁移文件在应用后被修改，这是危险的。
+				// 正确的做法是创建新的迁移文件来进行变更。
+				return fmt.Errorf(
+					"migration %s checksum mismatch (db=%s file=%s)\n"+
+						"This means the migration file was modified after being applied to the database.\n"+
+						"Solutions:\n"+
+						"  1. Revert to original: git log --oneline -- migrations/%s && git checkout <commit> -- migrations/%s\n"+
+						"  2. For new changes, create a new migration file instead of modifying existing ones\n"+
+						"Note: Modifying applied migrations breaks the immutability principle and can cause inconsistencies across environments",
+					name, existing, checksum, name, name,
+				)
+			}
+			continue // 迁移已应用且校验和匹配，跳过
+		}
+		if !errors.Is(rowErr, sql.ErrNoRows) {
+			return fmt.Errorf("check migration %s: %w", name, rowErr)
+		}
+
+		nonTx, err := validateMigrationExecutionMode(name, content)
+		if err != nil {
+			return fmt.Errorf("validate migration %s: %w", name, err)
+		}
+
+		if nonTx {
+			// *_notx.sql：用于 CREATE/DROP INDEX CONCURRENTLY 场景，必须非事务执行。
+			// 逐条语句执行，避免将多条 CONCURRENTLY 语句放入同一个隐式事务块。
+			statements := splitSQLStatements(content)
+			for i, stmt := range statements {
+				trimmed := strings.TrimSpace(stmt)
+				if trimmed == "" {
+					continue
+				}
+				if stripSQLLineComment(trimmed) == "" {
+					continue
+				}
+				if _, err := db.ExecContext(ctx, trimmed); err != nil {
+					return fmt.Errorf("apply migration %s (non-tx statement %d): %w", name, i+1, err)
+				}
+			}
+			if _, err := db.ExecContext(ctx, "INSERT INTO schema_migrations (filename, checksum) VALUES ($1, $2)", name, checksum); err != nil {
+				return fmt.Errorf("record migration %s (non-tx): %w", name, err)
+			}
+			continue
+		}
+
+		// 默认迁移在事务中执行，确保原子性：要么完全成功，要么完全回滚。
+		tx, err := db.BeginTx(ctx, nil)
+		if err != nil {
+			return fmt.Errorf("begin migration %s: %w", name, err)
+		}
+
+		// 执行迁移 SQL
+		if _, err := tx.ExecContext(ctx, content); err != nil {
+			_ = tx.Rollback()
+			return fmt.Errorf("apply migration %s: %w", name, err)
+		}
+
+		// 记录迁移已完成，保存文件名和校验和
+		if _, err := tx.ExecContext(ctx, "INSERT INTO schema_migrations (filename, checksum) VALUES ($1, $2)", name, checksum); err != nil {
+			_ = tx.Rollback()
+			return fmt.Errorf("record migration %s: %w", name, err)
+		}
+
+		// 提交事务
+		if err := tx.Commit(); err != nil {
+			_ = tx.Rollback()
+			return fmt.Errorf("commit migration %s: %w", name, err)
+		}
+	}
+
+	return nil
+}
+
+func ensureAtlasBaselineAligned(ctx context.Context, db *sql.DB, fsys fs.FS) error {
+	hasLegacy, err := tableExists(ctx, db, "schema_migrations")
+	if err != nil {
+		return fmt.Errorf("check schema_migrations: %w", err)
+	}
+	if !hasLegacy {
+		return nil
+	}
+
+	hasAtlas, err := tableExists(ctx, db, "atlas_schema_revisions")
+	if err != nil {
+		return fmt.Errorf("check atlas_schema_revisions: %w", err)
+	}
+	if !hasAtlas {
+		if _, err := db.ExecContext(ctx, atlasSchemaRevisionsTableDDL); err != nil {
+			return fmt.Errorf("create atlas_schema_revisions: %w", err)
+		}
+	}
+
+	var count int
+	if err := db.QueryRowContext(ctx, "SELECT COUNT(*) FROM atlas_schema_revisions").Scan(&count); err != nil {
+		return fmt.Errorf("count atlas_schema_revisions: %w", err)
+	}
+	if count > 0 {
+		return nil
+	}
+
+	version, description, hash, err := latestMigrationBaseline(fsys)
+	if err != nil {
+		return fmt.Errorf("atlas baseline version: %w", err)
+	}
+
+	if _, err := db.ExecContext(ctx, `
+		INSERT INTO atlas_schema_revisions (version, description, type, applied, total, executed_at, execution_time, hash)
+		VALUES ($1, $2, $3, 0, 0, NOW(), 0, $4)
+	`, version, description, 1, hash); err != nil {
+		return fmt.Errorf("insert atlas baseline: %w", err)
+	}
+	return nil
+}
+
+func tableExists(ctx context.Context, db *sql.DB, tableName string) (bool, error) {
+	var exists bool
+	err := db.QueryRowContext(ctx, `
+		SELECT EXISTS (
+			SELECT 1
+			FROM information_schema.tables
+			WHERE table_schema = 'public' AND table_name = $1
+		)
+	`, tableName).Scan(&exists)
+	return exists, err
+}
+
+func latestMigrationBaseline(fsys fs.FS) (string, string, string, error) {
+	files, err := fs.Glob(fsys, "*.sql")
+	if err != nil {
+		return "", "", "", err
+	}
+	if len(files) == 0 {
+		return "baseline", "baseline", "", nil
+	}
+	sort.Strings(files)
+	name := files[len(files)-1]
+	contentBytes, err := fs.ReadFile(fsys, name)
+	if err != nil {
+		return "", "", "", err
+	}
+	content := strings.TrimSpace(string(contentBytes))
+	sum := sha256.Sum256([]byte(content))
+	hash := hex.EncodeToString(sum[:])
+	version := strings.TrimSuffix(name, ".sql")
+	return version, version, hash, nil
+}
+
+func isMigrationChecksumCompatible(name, dbChecksum, fileChecksum string) bool {
+	rule, ok := migrationChecksumCompatibilityRules[name]
+	if !ok {
+		return false
+	}
+	if rule.fileChecksum != fileChecksum {
+		return false
+	}
+	_, ok = rule.acceptedDBChecksum[dbChecksum]
+	return ok
+}
+
+func validateMigrationExecutionMode(name, content string) (bool, error) {
+	normalizedName := strings.ToLower(strings.TrimSpace(name))
+	upperContent := strings.ToUpper(content)
+	nonTx := strings.HasSuffix(normalizedName, nonTransactionalMigrationSuffix)
+
+	if !nonTx {
+		if strings.Contains(upperContent, "CONCURRENTLY") {
+			return false, errors.New("CONCURRENTLY statements must be placed in *_notx.sql migrations")
+		}
+		return false, nil
+	}
+
+	if strings.Contains(upperContent, "BEGIN") || strings.Contains(upperContent, "COMMIT") || strings.Contains(upperContent, "ROLLBACK") {
+		return false, errors.New("*_notx.sql must not contain transaction control statements (BEGIN/COMMIT/ROLLBACK)")
+	}
+
+	statements := splitSQLStatements(content)
+	for _, stmt := range statements {
+		normalizedStmt := strings.ToUpper(stripSQLLineComment(strings.TrimSpace(stmt)))
+		if normalizedStmt == "" {
+			continue
+		}
+
+		if strings.Contains(normalizedStmt, "CONCURRENTLY") {
+			isCreateIndex := strings.Contains(normalizedStmt, "CREATE") && strings.Contains(normalizedStmt, "INDEX")
+			isDropIndex := strings.Contains(normalizedStmt, "DROP") && strings.Contains(normalizedStmt, "INDEX")
+			if !isCreateIndex && !isDropIndex {
+				return false, errors.New("*_notx.sql currently only supports CREATE/DROP INDEX CONCURRENTLY statements")
+			}
+			if isCreateIndex && !strings.Contains(normalizedStmt, "IF NOT EXISTS") {
+				return false, errors.New("CREATE INDEX CONCURRENTLY in *_notx.sql must include IF NOT EXISTS for idempotency")
+			}
+			if isDropIndex && !strings.Contains(normalizedStmt, "IF EXISTS") {
+				return false, errors.New("DROP INDEX CONCURRENTLY in *_notx.sql must include IF EXISTS for idempotency")
+			}
+			continue
+		}
+
+		return false, errors.New("*_notx.sql must not mix non-CONCURRENTLY SQL statements")
+	}
+
+	return true, nil
+}
+
+func splitSQLStatements(content string) []string {
+	parts := strings.Split(content, ";")
+	out := make([]string, 0, len(parts))
+	for _, part := range parts {
+		if strings.TrimSpace(part) == "" {
+			continue
+		}
+		out = append(out, part)
+	}
+	return out
+}
+
+func stripSQLLineComment(s string) string {
+	lines := strings.Split(s, "\n")
+	for i, line := range lines {
+		if idx := strings.Index(line, "--"); idx >= 0 {
+			lines[i] = line[:idx]
+		}
+	}
+	return strings.TrimSpace(strings.Join(lines, "\n"))
+}
+
+// pgAdvisoryLock 获取 PostgreSQL Advisory Lock。
+// Advisory Lock 是一种轻量级的锁机制，不与任何特定的数据库对象关联。
+// 它非常适合用于应用层面的分布式锁场景，如迁移序列化。
+func pgAdvisoryLock(ctx context.Context, db *sql.DB) error {
+	ticker := time.NewTicker(migrationsLockRetryInterval)
+	defer ticker.Stop()
+
+	for {
+		var locked bool
+		if err := db.QueryRowContext(ctx, "SELECT pg_try_advisory_lock($1)", migrationsAdvisoryLockID).Scan(&locked); err != nil {
+			return fmt.Errorf("acquire migrations lock: %w", err)
+		}
+		if locked {
+			return nil
+		}
+		select {
+		case <-ctx.Done():
+			return fmt.Errorf("acquire migrations lock: %w", ctx.Err())
+		case <-ticker.C:
+		}
+	}
+}
+
+// pgAdvisoryUnlock 释放 PostgreSQL Advisory Lock。
+// 必须在获取锁后确保释放，否则会阻塞其他实例的迁移操作。
+func pgAdvisoryUnlock(ctx context.Context, db *sql.DB) error {
+	_, err := db.ExecContext(ctx, "SELECT pg_advisory_unlock($1)", migrationsAdvisoryLockID)
+	if err != nil {
+		return fmt.Errorf("release migrations lock: %w", err)
+	}
+	return nil
+}

llm-gateway-competitors/sub2api-tar/backend/internal/repository/migrations_runner_checksum_test.go

@@ -0,0 +1,54 @@
+package repository
+
+import (
+	"testing"
+
+	"github.com/stretchr/testify/require"
+)
+
+func TestIsMigrationChecksumCompatible(t *testing.T) {
+	t.Run("054历史checksum可兼容", func(t *testing.T) {
+		ok := isMigrationChecksumCompatible(
+			"054_drop_legacy_cache_columns.sql",
+			"182c193f3359946cf094090cd9e57d5c3fd9abaffbc1e8fc378646b8a6fa12b4",
+			"82de761156e03876653e7a6a4eee883cd927847036f779b0b9f34c42a8af7a7d",
+		)
+		require.True(t, ok)
+	})
+
+	t.Run("054在未知文件checksum下不兼容", func(t *testing.T) {
+		ok := isMigrationChecksumCompatible(
+			"054_drop_legacy_cache_columns.sql",
+			"182c193f3359946cf094090cd9e57d5c3fd9abaffbc1e8fc378646b8a6fa12b4",
+			"0000000000000000000000000000000000000000000000000000000000000000",
+		)
+		require.False(t, ok)
+	})
+
+	t.Run("061历史checksum可兼容", func(t *testing.T) {
+		ok := isMigrationChecksumCompatible(
+			"061_add_usage_log_request_type.sql",
+			"08a248652cbab7cfde147fc6ef8cda464f2477674e20b718312faa252e0481c0",
+			"66207e7aa5dd0429c2e2c0fabdaf79783ff157fa0af2e81adff2ee03790ec65c",
+		)
+		require.True(t, ok)
+	})
+
+	t.Run("061第二个历史checksum可兼容", func(t *testing.T) {
+		ok := isMigrationChecksumCompatible(
+			"061_add_usage_log_request_type.sql",
+			"222b4a09c797c22e5922b6b172327c824f5463aaa8760e4f621bc5c22e2be0f3",
+			"66207e7aa5dd0429c2e2c0fabdaf79783ff157fa0af2e81adff2ee03790ec65c",
+		)
+		require.True(t, ok)
+	})
+
+	t.Run("非白名单迁移不兼容", func(t *testing.T) {
+		ok := isMigrationChecksumCompatible(
+			"001_init.sql",
+			"182c193f3359946cf094090cd9e57d5c3fd9abaffbc1e8fc378646b8a6fa12b4",
+			"82de761156e03876653e7a6a4eee883cd927847036f779b0b9f34c42a8af7a7d",
+		)
+		require.False(t, ok)
+	})
+}

llm-gateway-competitors/sub2api-tar/backend/internal/repository/migrations_runner_extra_test.go

@@ -0,0 +1,368 @@
+package repository
+
+import (
+	"context"
+	"crypto/sha256"
+	"encoding/hex"
+	"errors"
+	"io/fs"
+	"strings"
+	"testing"
+	"testing/fstest"
+	"time"
+
+	sqlmock "github.com/DATA-DOG/go-sqlmock"
+	"github.com/stretchr/testify/require"
+)
+
+func TestApplyMigrations_NilDB(t *testing.T) {
+	err := ApplyMigrations(context.Background(), nil)
+	require.Error(t, err)
+	require.Contains(t, err.Error(), "nil sql db")
+}
+
+func TestApplyMigrations_DelegatesToApplyMigrationsFS(t *testing.T) {
+	db, mock, err := sqlmock.New()
+	require.NoError(t, err)
+	defer func() { _ = db.Close() }()
+
+	mock.ExpectQuery("SELECT pg_try_advisory_lock\\(\\$1\\)").
+		WithArgs(migrationsAdvisoryLockID).
+		WillReturnError(errors.New("lock failed"))
+
+	err = ApplyMigrations(context.Background(), db)
+	require.Error(t, err)
+	require.Contains(t, err.Error(), "acquire migrations lock")
+	require.NoError(t, mock.ExpectationsWereMet())
+}
+
+func TestLatestMigrationBaseline(t *testing.T) {
+	t.Run("empty_fs_returns_baseline", func(t *testing.T) {
+		version, description, hash, err := latestMigrationBaseline(fstest.MapFS{})
+		require.NoError(t, err)
+		require.Equal(t, "baseline", version)
+		require.Equal(t, "baseline", description)
+		require.Equal(t, "", hash)
+	})
+
+	t.Run("uses_latest_sorted_sql_file", func(t *testing.T) {
+		fsys := fstest.MapFS{
+			"001_init.sql": &fstest.MapFile{Data: []byte("CREATE TABLE t1(id int);")},
+			"010_final.sql": &fstest.MapFile{
+				Data: []byte("CREATE TABLE t2(id int);"),
+			},
+		}
+		version, description, hash, err := latestMigrationBaseline(fsys)
+		require.NoError(t, err)
+		require.Equal(t, "010_final", version)
+		require.Equal(t, "010_final", description)
+		require.Len(t, hash, 64)
+	})
+
+	t.Run("read_file_error", func(t *testing.T) {
+		fsys := fstest.MapFS{
+			"010_bad.sql": &fstest.MapFile{Mode: fs.ModeDir},
+		}
+		_, _, _, err := latestMigrationBaseline(fsys)
+		require.Error(t, err)
+	})
+}
+
+func TestIsMigrationChecksumCompatible_AdditionalCases(t *testing.T) {
+	require.False(t, isMigrationChecksumCompatible("unknown.sql", "db", "file"))
+
+	var (
+		name string
+		rule migrationChecksumCompatibilityRule
+	)
+	for n, r := range migrationChecksumCompatibilityRules {
+		name = n
+		rule = r
+		break
+	}
+	require.NotEmpty(t, name)
+
+	require.False(t, isMigrationChecksumCompatible(name, "db-not-accepted", "file-not-match"))
+	require.False(t, isMigrationChecksumCompatible(name, "db-not-accepted", rule.fileChecksum))
+
+	var accepted string
+	for checksum := range rule.acceptedDBChecksum {
+		accepted = checksum
+		break
+	}
+	require.NotEmpty(t, accepted)
+	require.True(t, isMigrationChecksumCompatible(name, accepted, rule.fileChecksum))
+}
+
+func TestEnsureAtlasBaselineAligned(t *testing.T) {
+	t.Run("skip_when_no_legacy_table", func(t *testing.T) {
+		db, mock, err := sqlmock.New()
+		require.NoError(t, err)
+		defer func() { _ = db.Close() }()
+
+		mock.ExpectQuery("SELECT EXISTS \\(").
+			WithArgs("schema_migrations").
+			WillReturnRows(sqlmock.NewRows([]string{"exists"}).AddRow(false))
+
+		err = ensureAtlasBaselineAligned(context.Background(), db, fstest.MapFS{})
+		require.NoError(t, err)
+		require.NoError(t, mock.ExpectationsWereMet())
+	})
+
+	t.Run("create_atlas_and_insert_baseline_when_empty", func(t *testing.T) {
+		db, mock, err := sqlmock.New()
+		require.NoError(t, err)
+		defer func() { _ = db.Close() }()
+
+		mock.ExpectQuery("SELECT EXISTS \\(").
+			WithArgs("schema_migrations").
+			WillReturnRows(sqlmock.NewRows([]string{"exists"}).AddRow(true))
+		mock.ExpectQuery("SELECT EXISTS \\(").
+			WithArgs("atlas_schema_revisions").
+			WillReturnRows(sqlmock.NewRows([]string{"exists"}).AddRow(false))
+		mock.ExpectExec("CREATE TABLE IF NOT EXISTS atlas_schema_revisions").
+			WillReturnResult(sqlmock.NewResult(0, 0))
+		mock.ExpectQuery("SELECT COUNT\\(\\*\\) FROM atlas_schema_revisions").
+			WillReturnRows(sqlmock.NewRows([]string{"count"}).AddRow(0))
+		mock.ExpectExec("INSERT INTO atlas_schema_revisions").
+			WithArgs("002_next", "002_next", 1, sqlmock.AnyArg()).
+			WillReturnResult(sqlmock.NewResult(1, 1))
+
+		fsys := fstest.MapFS{
+			"001_init.sql": &fstest.MapFile{Data: []byte("CREATE TABLE t1(id int);")},
+			"002_next.sql": &fstest.MapFile{Data: []byte("CREATE TABLE t2(id int);")},
+		}
+		err = ensureAtlasBaselineAligned(context.Background(), db, fsys)
+		require.NoError(t, err)
+		require.NoError(t, mock.ExpectationsWereMet())
+	})
+
+	t.Run("error_when_checking_legacy_table", func(t *testing.T) {
+		db, mock, err := sqlmock.New()
+		require.NoError(t, err)
+		defer func() { _ = db.Close() }()
+
+		mock.ExpectQuery("SELECT EXISTS \\(").
+			WithArgs("schema_migrations").
+			WillReturnError(errors.New("exists failed"))
+
+		err = ensureAtlasBaselineAligned(context.Background(), db, fstest.MapFS{})
+		require.Error(t, err)
+		require.Contains(t, err.Error(), "check schema_migrations")
+		require.NoError(t, mock.ExpectationsWereMet())
+	})
+
+	t.Run("error_when_counting_atlas_rows", func(t *testing.T) {
+		db, mock, err := sqlmock.New()
+		require.NoError(t, err)
+		defer func() { _ = db.Close() }()
+
+		mock.ExpectQuery("SELECT EXISTS \\(").
+			WithArgs("schema_migrations").
+			WillReturnRows(sqlmock.NewRows([]string{"exists"}).AddRow(true))
+		mock.ExpectQuery("SELECT EXISTS \\(").
+			WithArgs("atlas_schema_revisions").
+			WillReturnRows(sqlmock.NewRows([]string{"exists"}).AddRow(true))
+		mock.ExpectQuery("SELECT COUNT\\(\\*\\) FROM atlas_schema_revisions").
+			WillReturnError(errors.New("count failed"))
+
+		err = ensureAtlasBaselineAligned(context.Background(), db, fstest.MapFS{})
+		require.Error(t, err)
+		require.Contains(t, err.Error(), "count atlas_schema_revisions")
+		require.NoError(t, mock.ExpectationsWereMet())
+	})
+
+	t.Run("error_when_creating_atlas_table", func(t *testing.T) {
+		db, mock, err := sqlmock.New()
+		require.NoError(t, err)
+		defer func() { _ = db.Close() }()
+
+		mock.ExpectQuery("SELECT EXISTS \\(").
+			WithArgs("schema_migrations").
+			WillReturnRows(sqlmock.NewRows([]string{"exists"}).AddRow(true))
+		mock.ExpectQuery("SELECT EXISTS \\(").
+			WithArgs("atlas_schema_revisions").
+			WillReturnRows(sqlmock.NewRows([]string{"exists"}).AddRow(false))
+		mock.ExpectExec("CREATE TABLE IF NOT EXISTS atlas_schema_revisions").
+			WillReturnError(errors.New("create failed"))
+
+		err = ensureAtlasBaselineAligned(context.Background(), db, fstest.MapFS{})
+		require.Error(t, err)
+		require.Contains(t, err.Error(), "create atlas_schema_revisions")
+		require.NoError(t, mock.ExpectationsWereMet())
+	})
+
+	t.Run("error_when_inserting_baseline", func(t *testing.T) {
+		db, mock, err := sqlmock.New()
+		require.NoError(t, err)
+		defer func() { _ = db.Close() }()
+
+		mock.ExpectQuery("SELECT EXISTS \\(").
+			WithArgs("schema_migrations").
+			WillReturnRows(sqlmock.NewRows([]string{"exists"}).AddRow(true))
+		mock.ExpectQuery("SELECT EXISTS \\(").
+			WithArgs("atlas_schema_revisions").
+			WillReturnRows(sqlmock.NewRows([]string{"exists"}).AddRow(true))
+		mock.ExpectQuery("SELECT COUNT\\(\\*\\) FROM atlas_schema_revisions").
+			WillReturnRows(sqlmock.NewRows([]string{"count"}).AddRow(0))
+		mock.ExpectExec("INSERT INTO atlas_schema_revisions").
+			WithArgs("001_init", "001_init", 1, sqlmock.AnyArg()).
+			WillReturnError(errors.New("insert failed"))
+
+		fsys := fstest.MapFS{
+			"001_init.sql": &fstest.MapFile{Data: []byte("CREATE TABLE t(id int);")},
+		}
+		err = ensureAtlasBaselineAligned(context.Background(), db, fsys)
+		require.Error(t, err)
+		require.Contains(t, err.Error(), "insert atlas baseline")
+		require.NoError(t, mock.ExpectationsWereMet())
+	})
+}
+
+func TestApplyMigrationsFS_ChecksumMismatchRejected(t *testing.T) {
+	db, mock, err := sqlmock.New()
+	require.NoError(t, err)
+	defer func() { _ = db.Close() }()
+
+	prepareMigrationsBootstrapExpectations(mock)
+	mock.ExpectQuery("SELECT checksum FROM schema_migrations WHERE filename = \\$1").
+		WithArgs("001_init.sql").
+		WillReturnRows(sqlmock.NewRows([]string{"checksum"}).AddRow("mismatched-checksum"))
+	mock.ExpectExec("SELECT pg_advisory_unlock\\(\\$1\\)").
+		WithArgs(migrationsAdvisoryLockID).
+		WillReturnResult(sqlmock.NewResult(0, 1))
+
+	fsys := fstest.MapFS{
+		"001_init.sql": &fstest.MapFile{Data: []byte("CREATE TABLE t(id int);")},
+	}
+	err = applyMigrationsFS(context.Background(), db, fsys)
+	require.Error(t, err)
+	require.Contains(t, err.Error(), "checksum mismatch")
+	require.NoError(t, mock.ExpectationsWereMet())
+}
+
+func TestApplyMigrationsFS_CheckMigrationQueryError(t *testing.T) {
+	db, mock, err := sqlmock.New()
+	require.NoError(t, err)
+	defer func() { _ = db.Close() }()
+
+	prepareMigrationsBootstrapExpectations(mock)
+	mock.ExpectQuery("SELECT checksum FROM schema_migrations WHERE filename = \\$1").
+		WithArgs("001_err.sql").
+		WillReturnError(errors.New("query failed"))
+	mock.ExpectExec("SELECT pg_advisory_unlock\\(\\$1\\)").
+		WithArgs(migrationsAdvisoryLockID).
+		WillReturnResult(sqlmock.NewResult(0, 1))
+
+	fsys := fstest.MapFS{
+		"001_err.sql": &fstest.MapFile{Data: []byte("SELECT 1;")},
+	}
+	err = applyMigrationsFS(context.Background(), db, fsys)
+	require.Error(t, err)
+	require.Contains(t, err.Error(), "check migration 001_err.sql")
+	require.NoError(t, mock.ExpectationsWereMet())
+}
+
+func TestApplyMigrationsFS_SkipEmptyAndAlreadyApplied(t *testing.T) {
+	db, mock, err := sqlmock.New()
+	require.NoError(t, err)
+	defer func() { _ = db.Close() }()
+
+	prepareMigrationsBootstrapExpectations(mock)
+
+	alreadySQL := "CREATE TABLE t(id int);"
+	checksum := migrationChecksum(alreadySQL)
+	mock.ExpectQuery("SELECT checksum FROM schema_migrations WHERE filename = \\$1").
+		WithArgs("001_already.sql").
+		WillReturnRows(sqlmock.NewRows([]string{"checksum"}).AddRow(checksum))
+	mock.ExpectExec("SELECT pg_advisory_unlock\\(\\$1\\)").
+		WithArgs(migrationsAdvisoryLockID).
+		WillReturnResult(sqlmock.NewResult(0, 1))
+
+	fsys := fstest.MapFS{
+		"000_empty.sql":   &fstest.MapFile{Data: []byte("   \n\t ")},
+		"001_already.sql": &fstest.MapFile{Data: []byte(alreadySQL)},
+	}
+	err = applyMigrationsFS(context.Background(), db, fsys)
+	require.NoError(t, err)
+	require.NoError(t, mock.ExpectationsWereMet())
+}
+
+func TestApplyMigrationsFS_ReadMigrationError(t *testing.T) {
+	db, mock, err := sqlmock.New()
+	require.NoError(t, err)
+	defer func() { _ = db.Close() }()
+
+	prepareMigrationsBootstrapExpectations(mock)
+	mock.ExpectExec("SELECT pg_advisory_unlock\\(\\$1\\)").
+		WithArgs(migrationsAdvisoryLockID).
+		WillReturnResult(sqlmock.NewResult(0, 1))
+
+	fsys := fstest.MapFS{
+		"001_bad.sql": &fstest.MapFile{Mode: fs.ModeDir},
+	}
+	err = applyMigrationsFS(context.Background(), db, fsys)
+	require.Error(t, err)
+	require.Contains(t, err.Error(), "read migration 001_bad.sql")
+	require.NoError(t, mock.ExpectationsWereMet())
+}
+
+func TestPgAdvisoryLockAndUnlock_ErrorBranches(t *testing.T) {
+	t.Run("context_cancelled_while_not_locked", func(t *testing.T) {
+		db, mock, err := sqlmock.New()
+		require.NoError(t, err)
+		defer func() { _ = db.Close() }()
+
+		mock.ExpectQuery("SELECT pg_try_advisory_lock\\(\\$1\\)").
+			WithArgs(migrationsAdvisoryLockID).
+			WillReturnRows(sqlmock.NewRows([]string{"pg_try_advisory_lock"}).AddRow(false))
+
+		ctx, cancel := context.WithTimeout(context.Background(), 5*time.Millisecond)
+		defer cancel()
+		err = pgAdvisoryLock(ctx, db)
+		require.Error(t, err)
+		require.Contains(t, err.Error(), "acquire migrations lock")
+		require.NoError(t, mock.ExpectationsWereMet())
+	})
+
+	t.Run("unlock_exec_error", func(t *testing.T) {
+		db, mock, err := sqlmock.New()
+		require.NoError(t, err)
+		defer func() { _ = db.Close() }()
+
+		mock.ExpectExec("SELECT pg_advisory_unlock\\(\\$1\\)").
+			WithArgs(migrationsAdvisoryLockID).
+			WillReturnError(errors.New("unlock failed"))
+
+		err = pgAdvisoryUnlock(context.Background(), db)
+		require.Error(t, err)
+		require.Contains(t, err.Error(), "release migrations lock")
+		require.NoError(t, mock.ExpectationsWereMet())
+	})
+
+	t.Run("acquire_lock_after_retry", func(t *testing.T) {
+		db, mock, err := sqlmock.New()
+		require.NoError(t, err)
+		defer func() { _ = db.Close() }()
+
+		mock.ExpectQuery("SELECT pg_try_advisory_lock\\(\\$1\\)").
+			WithArgs(migrationsAdvisoryLockID).
+			WillReturnRows(sqlmock.NewRows([]string{"pg_try_advisory_lock"}).AddRow(false))
+		mock.ExpectQuery("SELECT pg_try_advisory_lock\\(\\$1\\)").
+			WithArgs(migrationsAdvisoryLockID).
+			WillReturnRows(sqlmock.NewRows([]string{"pg_try_advisory_lock"}).AddRow(true))
+
+		ctx, cancel := context.WithTimeout(context.Background(), migrationsLockRetryInterval*3)
+		defer cancel()
+		start := time.Now()
+		err = pgAdvisoryLock(ctx, db)
+		require.NoError(t, err)
+		require.GreaterOrEqual(t, time.Since(start), migrationsLockRetryInterval)
+		require.NoError(t, mock.ExpectationsWereMet())
+	})
+}
+
+func migrationChecksum(content string) string {
+	sum := sha256.Sum256([]byte(strings.TrimSpace(content)))
+	return hex.EncodeToString(sum[:])
+}

llm-gateway-competitors/sub2api-tar/backend/internal/repository/migrations_runner_notx_test.go

@@ -0,0 +1,164 @@
+package repository
+
+import (
+	"context"
+	"database/sql"
+	"testing"
+	"testing/fstest"
+
+	sqlmock "github.com/DATA-DOG/go-sqlmock"
+	"github.com/stretchr/testify/require"
+)
+
+func TestValidateMigrationExecutionMode(t *testing.T) {
+	t.Run("事务迁移包含CONCURRENTLY会被拒绝", func(t *testing.T) {
+		nonTx, err := validateMigrationExecutionMode("001_add_idx.sql", "CREATE INDEX CONCURRENTLY idx_a ON t(a);")
+		require.False(t, nonTx)
+		require.Error(t, err)
+	})
+
+	t.Run("notx迁移要求CREATE使用IF NOT EXISTS", func(t *testing.T) {
+		nonTx, err := validateMigrationExecutionMode("001_add_idx_notx.sql", "CREATE INDEX CONCURRENTLY idx_a ON t(a);")
+		require.False(t, nonTx)
+		require.Error(t, err)
+	})
+
+	t.Run("notx迁移要求DROP使用IF EXISTS", func(t *testing.T) {
+		nonTx, err := validateMigrationExecutionMode("001_drop_idx_notx.sql", "DROP INDEX CONCURRENTLY idx_a;")
+		require.False(t, nonTx)
+		require.Error(t, err)
+	})
+
+	t.Run("notx迁移禁止事务控制语句", func(t *testing.T) {
+		nonTx, err := validateMigrationExecutionMode("001_add_idx_notx.sql", "BEGIN; CREATE INDEX CONCURRENTLY IF NOT EXISTS idx_a ON t(a); COMMIT;")
+		require.False(t, nonTx)
+		require.Error(t, err)
+	})
+
+	t.Run("notx迁移禁止混用非CONCURRENTLY语句", func(t *testing.T) {
+		nonTx, err := validateMigrationExecutionMode("001_add_idx_notx.sql", "CREATE INDEX CONCURRENTLY IF NOT EXISTS idx_a ON t(a); UPDATE t SET a = 1;")
+		require.False(t, nonTx)
+		require.Error(t, err)
+	})
+
+	t.Run("notx迁移允许幂等并发索引语句", func(t *testing.T) {
+		nonTx, err := validateMigrationExecutionMode("001_add_idx_notx.sql", `
+CREATE INDEX CONCURRENTLY IF NOT EXISTS idx_a ON t(a);
+DROP INDEX CONCURRENTLY IF EXISTS idx_b;
+`)
+		require.True(t, nonTx)
+		require.NoError(t, err)
+	})
+}
+
+func TestApplyMigrationsFS_NonTransactionalMigration(t *testing.T) {
+	db, mock, err := sqlmock.New()
+	require.NoError(t, err)
+	defer func() { _ = db.Close() }()
+
+	prepareMigrationsBootstrapExpectations(mock)
+	mock.ExpectQuery("SELECT checksum FROM schema_migrations WHERE filename = \\$1").
+		WithArgs("001_add_idx_notx.sql").
+		WillReturnError(sql.ErrNoRows)
+	mock.ExpectExec("CREATE INDEX CONCURRENTLY IF NOT EXISTS idx_t_a ON t\\(a\\)").
+		WillReturnResult(sqlmock.NewResult(0, 0))
+	mock.ExpectExec("INSERT INTO schema_migrations \\(filename, checksum\\) VALUES \\(\\$1, \\$2\\)").
+		WithArgs("001_add_idx_notx.sql", sqlmock.AnyArg()).
+		WillReturnResult(sqlmock.NewResult(1, 1))
+	mock.ExpectExec("SELECT pg_advisory_unlock\\(\\$1\\)").
+		WithArgs(migrationsAdvisoryLockID).
+		WillReturnResult(sqlmock.NewResult(0, 1))
+
+	fsys := fstest.MapFS{
+		"001_add_idx_notx.sql": &fstest.MapFile{
+			Data: []byte("CREATE INDEX CONCURRENTLY IF NOT EXISTS idx_t_a ON t(a);"),
+		},
+	}
+
+	err = applyMigrationsFS(context.Background(), db, fsys)
+	require.NoError(t, err)
+	require.NoError(t, mock.ExpectationsWereMet())
+}
+
+func TestApplyMigrationsFS_NonTransactionalMigration_MultiStatements(t *testing.T) {
+	db, mock, err := sqlmock.New()
+	require.NoError(t, err)
+	defer func() { _ = db.Close() }()
+
+	prepareMigrationsBootstrapExpectations(mock)
+	mock.ExpectQuery("SELECT checksum FROM schema_migrations WHERE filename = \\$1").
+		WithArgs("001_add_multi_idx_notx.sql").
+		WillReturnError(sql.ErrNoRows)
+	mock.ExpectExec("CREATE INDEX CONCURRENTLY IF NOT EXISTS idx_t_a ON t\\(a\\)").
+		WillReturnResult(sqlmock.NewResult(0, 0))
+	mock.ExpectExec("CREATE INDEX CONCURRENTLY IF NOT EXISTS idx_t_b ON t\\(b\\)").
+		WillReturnResult(sqlmock.NewResult(0, 0))
+	mock.ExpectExec("INSERT INTO schema_migrations \\(filename, checksum\\) VALUES \\(\\$1, \\$2\\)").
+		WithArgs("001_add_multi_idx_notx.sql", sqlmock.AnyArg()).
+		WillReturnResult(sqlmock.NewResult(1, 1))
+	mock.ExpectExec("SELECT pg_advisory_unlock\\(\\$1\\)").
+		WithArgs(migrationsAdvisoryLockID).
+		WillReturnResult(sqlmock.NewResult(0, 1))
+
+	fsys := fstest.MapFS{
+		"001_add_multi_idx_notx.sql": &fstest.MapFile{
+			Data: []byte(`
+-- first
+CREATE INDEX CONCURRENTLY IF NOT EXISTS idx_t_a ON t(a);
+-- second
+CREATE INDEX CONCURRENTLY IF NOT EXISTS idx_t_b ON t(b);
+`),
+		},
+	}
+
+	err = applyMigrationsFS(context.Background(), db, fsys)
+	require.NoError(t, err)
+	require.NoError(t, mock.ExpectationsWereMet())
+}
+
+func TestApplyMigrationsFS_TransactionalMigration(t *testing.T) {
+	db, mock, err := sqlmock.New()
+	require.NoError(t, err)
+	defer func() { _ = db.Close() }()
+
+	prepareMigrationsBootstrapExpectations(mock)
+	mock.ExpectQuery("SELECT checksum FROM schema_migrations WHERE filename = \\$1").
+		WithArgs("001_add_col.sql").
+		WillReturnError(sql.ErrNoRows)
+	mock.ExpectBegin()
+	mock.ExpectExec("ALTER TABLE t ADD COLUMN name TEXT").
+		WillReturnResult(sqlmock.NewResult(0, 0))
+	mock.ExpectExec("INSERT INTO schema_migrations \\(filename, checksum\\) VALUES \\(\\$1, \\$2\\)").
+		WithArgs("001_add_col.sql", sqlmock.AnyArg()).
+		WillReturnResult(sqlmock.NewResult(1, 1))
+	mock.ExpectCommit()
+	mock.ExpectExec("SELECT pg_advisory_unlock\\(\\$1\\)").
+		WithArgs(migrationsAdvisoryLockID).
+		WillReturnResult(sqlmock.NewResult(0, 1))
+
+	fsys := fstest.MapFS{
+		"001_add_col.sql": &fstest.MapFile{
+			Data: []byte("ALTER TABLE t ADD COLUMN name TEXT;"),
+		},
+	}
+
+	err = applyMigrationsFS(context.Background(), db, fsys)
+	require.NoError(t, err)
+	require.NoError(t, mock.ExpectationsWereMet())
+}
+
+func prepareMigrationsBootstrapExpectations(mock sqlmock.Sqlmock) {
+	mock.ExpectQuery("SELECT pg_try_advisory_lock\\(\\$1\\)").
+		WithArgs(migrationsAdvisoryLockID).
+		WillReturnRows(sqlmock.NewRows([]string{"pg_try_advisory_lock"}).AddRow(true))
+	mock.ExpectExec("CREATE TABLE IF NOT EXISTS schema_migrations").
+		WillReturnResult(sqlmock.NewResult(0, 0))
+	mock.ExpectQuery("SELECT EXISTS \\(").
+		WithArgs("schema_migrations").
+		WillReturnRows(sqlmock.NewRows([]string{"exists"}).AddRow(true))
+	mock.ExpectQuery("SELECT EXISTS \\(").
+		WithArgs("atlas_schema_revisions").
+		WillReturnRows(sqlmock.NewRows([]string{"exists"}).AddRow(true))
+	mock.ExpectQuery("SELECT COUNT\\(\\*\\) FROM atlas_schema_revisions").
+		WillReturnRows(sqlmock.NewRows([]string{"count"}).AddRow(1))
+}

llm-gateway-competitors/sub2api-tar/backend/internal/repository/migrations_schema_integration_test.go

@@ -0,0 +1,141 @@
+//go:build integration
+
+package repository
+
+import (
+	"context"
+	"database/sql"
+	"testing"
+
+	"github.com/stretchr/testify/require"
+)
+
+func TestMigrationsRunner_IsIdempotent_AndSchemaIsUpToDate(t *testing.T) {
+	tx := testTx(t)
+
+	// Re-apply migrations to verify idempotency (no errors, no duplicate rows).
+	require.NoError(t, ApplyMigrations(context.Background(), integrationDB))
+
+	// schema_migrations should have at least the current migration set.
+	var applied int
+	require.NoError(t, tx.QueryRowContext(context.Background(), "SELECT COUNT(*) FROM schema_migrations").Scan(&applied))
+	require.GreaterOrEqual(t, applied, 7, "expected schema_migrations to contain applied migrations")
+
+	// users: columns required by repository queries
+	requireColumn(t, tx, "users", "username", "character varying", 100, false)
+	requireColumn(t, tx, "users", "notes", "text", 0, false)
+
+	// accounts: schedulable and rate-limit fields
+	requireColumn(t, tx, "accounts", "notes", "text", 0, true)
+	requireColumn(t, tx, "accounts", "schedulable", "boolean", 0, false)
+	requireColumn(t, tx, "accounts", "rate_limited_at", "timestamp with time zone", 0, true)
+	requireColumn(t, tx, "accounts", "rate_limit_reset_at", "timestamp with time zone", 0, true)
+	requireColumn(t, tx, "accounts", "overload_until", "timestamp with time zone", 0, true)
+	requireColumn(t, tx, "accounts", "session_window_status", "character varying", 20, true)
+
+	// api_keys: key length should be 128
+	requireColumn(t, tx, "api_keys", "key", "character varying", 128, false)
+
+	// redeem_codes: subscription fields
+	requireColumn(t, tx, "redeem_codes", "group_id", "bigint", 0, true)
+	requireColumn(t, tx, "redeem_codes", "validity_days", "integer", 0, false)
+
+	// usage_logs: billing_type used by filters/stats
+	requireColumn(t, tx, "usage_logs", "billing_type", "smallint", 0, false)
+	requireColumn(t, tx, "usage_logs", "request_type", "smallint", 0, false)
+	requireColumn(t, tx, "usage_logs", "openai_ws_mode", "boolean", 0, false)
+
+	// usage_billing_dedup: billing idempotency narrow table
+	var usageBillingDedupRegclass sql.NullString
+	require.NoError(t, tx.QueryRowContext(context.Background(), "SELECT to_regclass('public.usage_billing_dedup')").Scan(&usageBillingDedupRegclass))
+	require.True(t, usageBillingDedupRegclass.Valid, "expected usage_billing_dedup table to exist")
+	requireColumn(t, tx, "usage_billing_dedup", "request_fingerprint", "character varying", 64, false)
+	requireIndex(t, tx, "usage_billing_dedup", "idx_usage_billing_dedup_request_api_key")
+	requireIndex(t, tx, "usage_billing_dedup", "idx_usage_billing_dedup_created_at_brin")
+
+	var usageBillingDedupArchiveRegclass sql.NullString
+	require.NoError(t, tx.QueryRowContext(context.Background(), "SELECT to_regclass('public.usage_billing_dedup_archive')").Scan(&usageBillingDedupArchiveRegclass))
+	require.True(t, usageBillingDedupArchiveRegclass.Valid, "expected usage_billing_dedup_archive table to exist")
+	requireColumn(t, tx, "usage_billing_dedup_archive", "request_fingerprint", "character varying", 64, false)
+	requireIndex(t, tx, "usage_billing_dedup_archive", "usage_billing_dedup_archive_pkey")
+
+	// settings table should exist
+	var settingsRegclass sql.NullString
+	require.NoError(t, tx.QueryRowContext(context.Background(), "SELECT to_regclass('public.settings')").Scan(&settingsRegclass))
+	require.True(t, settingsRegclass.Valid, "expected settings table to exist")
+
+	// security_secrets table should exist
+	var securitySecretsRegclass sql.NullString
+	require.NoError(t, tx.QueryRowContext(context.Background(), "SELECT to_regclass('public.security_secrets')").Scan(&securitySecretsRegclass))
+	require.True(t, securitySecretsRegclass.Valid, "expected security_secrets table to exist")
+
+	// user_allowed_groups table should exist
+	var uagRegclass sql.NullString
+	require.NoError(t, tx.QueryRowContext(context.Background(), "SELECT to_regclass('public.user_allowed_groups')").Scan(&uagRegclass))
+	require.True(t, uagRegclass.Valid, "expected user_allowed_groups table to exist")
+
+	// user_subscriptions: deleted_at for soft delete support (migration 012)
+	requireColumn(t, tx, "user_subscriptions", "deleted_at", "timestamp with time zone", 0, true)
+
+	// orphan_allowed_groups_audit table should exist (migration 013)
+	var orphanAuditRegclass sql.NullString
+	require.NoError(t, tx.QueryRowContext(context.Background(), "SELECT to_regclass('public.orphan_allowed_groups_audit')").Scan(&orphanAuditRegclass))
+	require.True(t, orphanAuditRegclass.Valid, "expected orphan_allowed_groups_audit table to exist")
+
+	// account_groups: created_at should be timestamptz
+	requireColumn(t, tx, "account_groups", "created_at", "timestamp with time zone", 0, false)
+
+	// user_allowed_groups: created_at should be timestamptz
+	requireColumn(t, tx, "user_allowed_groups", "created_at", "timestamp with time zone", 0, false)
+}
+
+func requireIndex(t *testing.T, tx *sql.Tx, table, index string) {
+	t.Helper()
+
+	var exists bool
+	err := tx.QueryRowContext(context.Background(), `
+SELECT EXISTS (
+	SELECT 1
+	FROM pg_indexes
+	WHERE schemaname = 'public'
+	  AND tablename = $1
+	  AND indexname = $2
+)
+`, table, index).Scan(&exists)
+	require.NoError(t, err, "query pg_indexes for %s.%s", table, index)
+	require.True(t, exists, "expected index %s on %s", index, table)
+}
+
+func requireColumn(t *testing.T, tx *sql.Tx, table, column, dataType string, maxLen int, nullable bool) {
+	t.Helper()
+
+	var row struct {
+		DataType string
+		MaxLen   sql.NullInt64
+		Nullable string
+	}
+
+	err := tx.QueryRowContext(context.Background(), `
+SELECT
+  data_type,
+  character_maximum_length,
+  is_nullable
+FROM information_schema.columns
+WHERE table_schema = 'public'
+  AND table_name = $1
+  AND column_name = $2
+`, table, column).Scan(&row.DataType, &row.MaxLen, &row.Nullable)
+	require.NoError(t, err, "query information_schema.columns for %s.%s", table, column)
+	require.Equal(t, dataType, row.DataType, "data_type mismatch for %s.%s", table, column)
+
+	if maxLen > 0 {
+		require.True(t, row.MaxLen.Valid, "expected maxLen for %s.%s", table, column)
+		require.Equal(t, int64(maxLen), row.MaxLen.Int64, "maxLen mismatch for %s.%s", table, column)
+	}
+
+	if nullable {
+		require.Equal(t, "YES", row.Nullable, "nullable mismatch for %s.%s", table, column)
+	} else {
+		require.Equal(t, "NO", row.Nullable, "nullable mismatch for %s.%s", table, column)
+	}
+}

llm-gateway-competitors/sub2api-tar/backend/internal/repository/openai_oauth_service.go

@@ -0,0 +1,116 @@
+package repository
+
+import (
+	"context"
+	"net/http"
+	"net/url"
+	"strings"
+	"time"
+
+	infraerrors "github.com/Wei-Shaw/sub2api/internal/pkg/errors"
+	"github.com/Wei-Shaw/sub2api/internal/pkg/openai"
+	"github.com/Wei-Shaw/sub2api/internal/service"
+	"github.com/imroc/req/v3"
+)
+
+// NewOpenAIOAuthClient creates a new OpenAI OAuth client
+func NewOpenAIOAuthClient() service.OpenAIOAuthClient {
+	return &openaiOAuthService{tokenURL: openai.TokenURL}
+}
+
+type openaiOAuthService struct {
+	tokenURL string
+}
+
+func (s *openaiOAuthService) ExchangeCode(ctx context.Context, code, codeVerifier, redirectURI, proxyURL, clientID string) (*openai.TokenResponse, error) {
+	client, err := createOpenAIReqClient(proxyURL)
+	if err != nil {
+		return nil, infraerrors.Newf(http.StatusBadGateway, "OPENAI_OAUTH_CLIENT_INIT_FAILED", "create HTTP client: %v", err)
+	}
+
+	if redirectURI == "" {
+		redirectURI = openai.DefaultRedirectURI
+	}
+	clientID = strings.TrimSpace(clientID)
+	if clientID == "" {
+		clientID = openai.ClientID
+	}
+
+	formData := url.Values{}
+	formData.Set("grant_type", "authorization_code")
+	formData.Set("client_id", clientID)
+	formData.Set("code", code)
+	formData.Set("redirect_uri", redirectURI)
+	formData.Set("code_verifier", codeVerifier)
+
+	var tokenResp openai.TokenResponse
+
+	resp, err := client.R().
+		SetContext(ctx).
+		SetHeader("User-Agent", "codex-cli/0.91.0").
+		SetFormDataFromValues(formData).
+		SetSuccessResult(&tokenResp).
+		Post(s.tokenURL)
+
+	if err != nil {
+		return nil, infraerrors.Newf(http.StatusBadGateway, "OPENAI_OAUTH_REQUEST_FAILED", "request failed: %v", err)
+	}
+
+	if !resp.IsSuccessState() {
+		return nil, infraerrors.Newf(http.StatusBadGateway, "OPENAI_OAUTH_TOKEN_EXCHANGE_FAILED", "token exchange failed: status %d, body: %s", resp.StatusCode, resp.String())
+	}
+
+	return &tokenResp, nil
+}
+
+func (s *openaiOAuthService) RefreshToken(ctx context.Context, refreshToken, proxyURL string) (*openai.TokenResponse, error) {
+	return s.RefreshTokenWithClientID(ctx, refreshToken, proxyURL, "")
+}
+
+func (s *openaiOAuthService) RefreshTokenWithClientID(ctx context.Context, refreshToken, proxyURL string, clientID string) (*openai.TokenResponse, error) {
+	// 调用方应始终传入正确的 client_id；为兼容旧数据，未指定时默认使用 OpenAI ClientID
+	clientID = strings.TrimSpace(clientID)
+	if clientID == "" {
+		clientID = openai.ClientID
+	}
+	return s.refreshTokenWithClientID(ctx, refreshToken, proxyURL, clientID)
+}
+
+func (s *openaiOAuthService) refreshTokenWithClientID(ctx context.Context, refreshToken, proxyURL, clientID string) (*openai.TokenResponse, error) {
+	client, err := createOpenAIReqClient(proxyURL)
+	if err != nil {
+		return nil, infraerrors.Newf(http.StatusBadGateway, "OPENAI_OAUTH_CLIENT_INIT_FAILED", "create HTTP client: %v", err)
+	}
+
+	formData := url.Values{}
+	formData.Set("grant_type", "refresh_token")
+	formData.Set("refresh_token", refreshToken)
+	formData.Set("client_id", clientID)
+	formData.Set("scope", openai.RefreshScopes)
+
+	var tokenResp openai.TokenResponse
+
+	resp, err := client.R().
+		SetContext(ctx).
+		SetHeader("User-Agent", "codex-cli/0.91.0").
+		SetFormDataFromValues(formData).
+		SetSuccessResult(&tokenResp).
+		Post(s.tokenURL)
+
+	if err != nil {
+		return nil, infraerrors.Newf(http.StatusBadGateway, "OPENAI_OAUTH_REQUEST_FAILED", "request failed: %v", err)
+	}
+
+	if !resp.IsSuccessState() {
+		return nil, infraerrors.Newf(http.StatusBadGateway, "OPENAI_OAUTH_TOKEN_REFRESH_FAILED", "token refresh failed: status %d, body: %s", resp.StatusCode, resp.String())
+	}
+
+	return &tokenResp, nil
+}
+
+func createOpenAIReqClient(proxyURL string) (*req.Client, error) {
+	return getSharedReqClient(reqClientOptions{
+		ProxyURL: proxyURL,
+		Timeout:  120 * time.Second,
+	})
+}

llm-gateway-competitors/sub2api-tar/backend/internal/repository/openai_oauth_service_test.go

@@ -0,0 +1,350 @@
+package repository
+
+import (
+	"context"
+	"io"
+	"net/http"
+	"net/http/httptest"
+	"net/url"
+	"testing"
+
+	"github.com/Wei-Shaw/sub2api/internal/pkg/openai"
+	"github.com/stretchr/testify/require"
+	"github.com/stretchr/testify/suite"
+)
+
+type OpenAIOAuthServiceSuite struct {
+	suite.Suite
+	ctx      context.Context
+	srv      *httptest.Server
+	svc      *openaiOAuthService
+	received chan url.Values
+}
+
+func (s *OpenAIOAuthServiceSuite) SetupTest() {
+	s.ctx = context.Background()
+	s.received = make(chan url.Values, 1)
+}
+
+func (s *OpenAIOAuthServiceSuite) TearDownTest() {
+	if s.srv != nil {
+		s.srv.Close()
+		s.srv = nil
+	}
+}
+
+func (s *OpenAIOAuthServiceSuite) setupServer(handler http.HandlerFunc) {
+	s.srv = newLocalTestServer(s.T(), handler)
+	s.svc = &openaiOAuthService{tokenURL: s.srv.URL}
+}
+
+func (s *OpenAIOAuthServiceSuite) TestExchangeCode_DefaultRedirectURI() {
+	errCh := make(chan string, 1)
+	s.setupServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+		if r.Method != http.MethodPost {
+			errCh <- "method mismatch"
+			w.WriteHeader(http.StatusBadRequest)
+			return
+		}
+		if err := r.ParseForm(); err != nil {
+			errCh <- "ParseForm failed"
+			w.WriteHeader(http.StatusBadRequest)
+			return
+		}
+		if got := r.PostForm.Get("grant_type"); got != "authorization_code" {
+			errCh <- "grant_type mismatch"
+			w.WriteHeader(http.StatusBadRequest)
+			return
+		}
+		if got := r.PostForm.Get("client_id"); got != openai.ClientID {
+			errCh <- "client_id mismatch"
+			w.WriteHeader(http.StatusBadRequest)
+			return
+		}
+		if got := r.PostForm.Get("code"); got != "code" {
+			errCh <- "code mismatch"
+			w.WriteHeader(http.StatusBadRequest)
+			return
+		}
+		if got := r.PostForm.Get("redirect_uri"); got != openai.DefaultRedirectURI {
+			errCh <- "redirect_uri mismatch"
+			w.WriteHeader(http.StatusBadRequest)
+			return
+		}
+		if got := r.PostForm.Get("code_verifier"); got != "ver" {
+			errCh <- "code_verifier mismatch"
+			w.WriteHeader(http.StatusBadRequest)
+			return
+		}
+
+		w.Header().Set("Content-Type", "application/json")
+		_, _ = io.WriteString(w, `{"access_token":"at","refresh_token":"rt","token_type":"bearer","expires_in":3600}`)
+	}))
+
+	resp, err := s.svc.ExchangeCode(s.ctx, "code", "ver", "", "", "")
+	require.NoError(s.T(), err, "ExchangeCode")
+	select {
+	case msg := <-errCh:
+		require.Fail(s.T(), msg)
+	default:
+	}
+	require.Equal(s.T(), "at", resp.AccessToken)
+	require.Equal(s.T(), "rt", resp.RefreshToken)
+}
+
+func (s *OpenAIOAuthServiceSuite) TestRefreshToken_FormFields() {
+	errCh := make(chan string, 1)
+	s.setupServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+		if err := r.ParseForm(); err != nil {
+			errCh <- "ParseForm failed"
+			w.WriteHeader(http.StatusBadRequest)
+			return
+		}
+		if got := r.PostForm.Get("grant_type"); got != "refresh_token" {
+			errCh <- "grant_type mismatch"
+			w.WriteHeader(http.StatusBadRequest)
+			return
+		}
+		if got := r.PostForm.Get("refresh_token"); got != "rt" {
+			errCh <- "refresh_token mismatch"
+			w.WriteHeader(http.StatusBadRequest)
+			return
+		}
+		if got := r.PostForm.Get("client_id"); got != openai.ClientID {
+			errCh <- "client_id mismatch"
+			w.WriteHeader(http.StatusBadRequest)
+			return
+		}
+		if got := r.PostForm.Get("scope"); got != openai.RefreshScopes {
+			errCh <- "scope mismatch"
+			w.WriteHeader(http.StatusBadRequest)
+			return
+		}
+
+		w.Header().Set("Content-Type", "application/json")
+		_, _ = io.WriteString(w, `{"access_token":"at2","refresh_token":"rt2","token_type":"bearer","expires_in":3600}`)
+	}))
+
+	resp, err := s.svc.RefreshToken(s.ctx, "rt", "")
+	require.NoError(s.T(), err, "RefreshToken")
+	select {
+	case msg := <-errCh:
+		require.Fail(s.T(), msg)
+	default:
+	}
+	require.Equal(s.T(), "at2", resp.AccessToken)
+	require.Equal(s.T(), "rt2", resp.RefreshToken)
+}
+
+// TestRefreshToken_DefaultsToOpenAIClientID 验证未指定 client_id 时默认使用 OpenAI ClientID，
+// 且只发送一次请求（不再盲猜多个 client_id）。
+func (s *OpenAIOAuthServiceSuite) TestRefreshToken_DefaultsToOpenAIClientID() {
+	var seenClientIDs []string
+	s.setupServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+		if err := r.ParseForm(); err != nil {
+			w.WriteHeader(http.StatusBadRequest)
+			return
+		}
+		clientID := r.PostForm.Get("client_id")
+		seenClientIDs = append(seenClientIDs, clientID)
+		w.Header().Set("Content-Type", "application/json")
+		_, _ = io.WriteString(w, `{"access_token":"at","refresh_token":"rt","token_type":"bearer","expires_in":3600}`)
+	}))
+
+	resp, err := s.svc.RefreshToken(s.ctx, "rt", "")
+	require.NoError(s.T(), err, "RefreshToken")
+	require.Equal(s.T(), "at", resp.AccessToken)
+	// 只发送了一次请求，使用默认的 OpenAI ClientID
+	require.Equal(s.T(), []string{openai.ClientID}, seenClientIDs)
+}
+
+// TestRefreshToken_UseSoraClientID 验证显式传入 Sora ClientID 时直接使用，不回退。
+func (s *OpenAIOAuthServiceSuite) TestRefreshToken_UseSoraClientID() {
+	var seenClientIDs []string
+	s.setupServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+		if err := r.ParseForm(); err != nil {
+			w.WriteHeader(http.StatusBadRequest)
+			return
+		}
+		clientID := r.PostForm.Get("client_id")
+		seenClientIDs = append(seenClientIDs, clientID)
+		if clientID == openai.SoraClientID {
+			w.Header().Set("Content-Type", "application/json")
+			_, _ = io.WriteString(w, `{"access_token":"at-sora","refresh_token":"rt-sora","token_type":"bearer","expires_in":3600}`)
+			return
+		}
+		w.WriteHeader(http.StatusBadRequest)
+	}))
+
+	resp, err := s.svc.RefreshTokenWithClientID(s.ctx, "rt", "", openai.SoraClientID)
+	require.NoError(s.T(), err, "RefreshTokenWithClientID")
+	require.Equal(s.T(), "at-sora", resp.AccessToken)
+	require.Equal(s.T(), []string{openai.SoraClientID}, seenClientIDs)
+}
+
+func (s *OpenAIOAuthServiceSuite) TestRefreshToken_UseProvidedClientID() {
+	const customClientID = "custom-client-id"
+	var seenClientIDs []string
+	s.setupServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+		if err := r.ParseForm(); err != nil {
+			w.WriteHeader(http.StatusBadRequest)
+			return
+		}
+		clientID := r.PostForm.Get("client_id")
+		seenClientIDs = append(seenClientIDs, clientID)
+		if clientID != customClientID {
+			w.WriteHeader(http.StatusBadRequest)
+			return
+		}
+		w.Header().Set("Content-Type", "application/json")
+		_, _ = io.WriteString(w, `{"access_token":"at-custom","refresh_token":"rt-custom","token_type":"bearer","expires_in":3600}`)
+	}))
+
+	resp, err := s.svc.RefreshTokenWithClientID(s.ctx, "rt", "", customClientID)
+	require.NoError(s.T(), err, "RefreshTokenWithClientID")
+	require.Equal(s.T(), "at-custom", resp.AccessToken)
+	require.Equal(s.T(), "rt-custom", resp.RefreshToken)
+	require.Equal(s.T(), []string{customClientID}, seenClientIDs)
+}
+
+func (s *OpenAIOAuthServiceSuite) TestNonSuccessStatus_IncludesBody() {
+	s.setupServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+		w.WriteHeader(http.StatusBadRequest)
+		_, _ = io.WriteString(w, "bad")
+	}))
+
+	_, err := s.svc.ExchangeCode(s.ctx, "code", "ver", openai.DefaultRedirectURI, "", "")
+	require.Error(s.T(), err)
+	require.ErrorContains(s.T(), err, "status 400")
+	require.ErrorContains(s.T(), err, "bad")
+}
+
+func (s *OpenAIOAuthServiceSuite) TestRequestError_ClosedServer() {
+	s.setupServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {}))
+	s.srv.Close()
+
+	_, err := s.svc.ExchangeCode(s.ctx, "code", "ver", openai.DefaultRedirectURI, "", "")
+	require.Error(s.T(), err)
+	require.ErrorContains(s.T(), err, "request failed")
+}
+
+func (s *OpenAIOAuthServiceSuite) TestContextCancel() {
+	started := make(chan struct{})
+	block := make(chan struct{})
+	s.setupServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+		close(started)
+		<-block
+	}))
+
+	ctx, cancel := context.WithCancel(s.ctx)
+
+	done := make(chan error, 1)
+	go func() {
+		_, err := s.svc.ExchangeCode(ctx, "code", "ver", openai.DefaultRedirectURI, "", "")
+		done <- err
+	}()
+
+	<-started
+	cancel()
+	close(block)
+
+	err := <-done
+	require.Error(s.T(), err)
+}
+
+func (s *OpenAIOAuthServiceSuite) TestExchangeCode_UsesProvidedRedirectURI() {
+	want := "http://localhost:9999/cb"
+	errCh := make(chan string, 1)
+	s.setupServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+		_ = r.ParseForm()
+		if got := r.PostForm.Get("redirect_uri"); got != want {
+			errCh <- "redirect_uri mismatch"
+			w.WriteHeader(http.StatusBadRequest)
+			return
+		}
+		w.Header().Set("Content-Type", "application/json")
+		_, _ = io.WriteString(w, `{"access_token":"at","token_type":"bearer","expires_in":1}`)
+	}))
+
+	_, err := s.svc.ExchangeCode(s.ctx, "code", "ver", want, "", "")
+	require.NoError(s.T(), err, "ExchangeCode")
+	select {
+	case msg := <-errCh:
+		require.Fail(s.T(), msg)
+	default:
+	}
+}
+
+func (s *OpenAIOAuthServiceSuite) TestExchangeCode_UseProvidedClientID() {
+	wantClientID := openai.SoraClientID
+	errCh := make(chan string, 1)
+	s.setupServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+		_ = r.ParseForm()
+		if got := r.PostForm.Get("client_id"); got != wantClientID {
+			errCh <- "client_id mismatch"
+			w.WriteHeader(http.StatusBadRequest)
+			return
+		}
+		w.Header().Set("Content-Type", "application/json")
+		_, _ = io.WriteString(w, `{"access_token":"at","token_type":"bearer","expires_in":1}`)
+	}))
+
+	_, err := s.svc.ExchangeCode(s.ctx, "code", "ver", openai.DefaultRedirectURI, "", wantClientID)
+	require.NoError(s.T(), err, "ExchangeCode")
+	select {
+	case msg := <-errCh:
+		require.Fail(s.T(), msg)
+	default:
+	}
+}
+
+func (s *OpenAIOAuthServiceSuite) TestTokenURL_CanBeOverriddenWithQuery() {
+	s.setupServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+		_ = r.ParseForm()
+		s.received <- r.PostForm
+		w.Header().Set("Content-Type", "application/json")
+		_, _ = io.WriteString(w, `{"access_token":"at","token_type":"bearer","expires_in":1}`)
+	}))
+	s.svc.tokenURL = s.srv.URL + "?x=1"
+
+	_, err := s.svc.ExchangeCode(s.ctx, "code", "ver", openai.DefaultRedirectURI, "", "")
+	require.NoError(s.T(), err, "ExchangeCode")
+	select {
+	case <-s.received:
+	default:
+		require.Fail(s.T(), "expected server to receive request")
+	}
+}
+
+func (s *OpenAIOAuthServiceSuite) TestExchangeCode_SuccessButInvalidJSON() {
+	s.setupServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+		w.Header().Set("Content-Type", "application/json")
+		w.WriteHeader(http.StatusOK)
+		_, _ = io.WriteString(w, "not-valid-json")
+	}))
+
+	_, err := s.svc.ExchangeCode(s.ctx, "code", "ver", openai.DefaultRedirectURI, "", "")
+	require.Error(s.T(), err, "expected error for invalid JSON response")
+}
+
+func (s *OpenAIOAuthServiceSuite) TestRefreshToken_NonSuccessStatus() {
+	s.setupServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+		w.WriteHeader(http.StatusUnauthorized)
+		_, _ = io.WriteString(w, "unauthorized")
+	}))
+
+	_, err := s.svc.RefreshToken(s.ctx, "rt", "")
+	require.Error(s.T(), err, "expected error for non-2xx status")
+	require.ErrorContains(s.T(), err, "status 401")
+}
+
+func TestNewOpenAIOAuthClient_DefaultTokenURL(t *testing.T) {
+	client := NewOpenAIOAuthClient()
+	svc, ok := client.(*openaiOAuthService)
+	require.True(t, ok)
+	require.Equal(t, openai.TokenURL, svc.tokenURL)
+}
+
+func TestOpenAIOAuthServiceSuite(t *testing.T) {
+	suite.Run(t, new(OpenAIOAuthServiceSuite))
+}

llm-gateway-competitors/sub2api-tar/backend/internal/repository/ops_repo_alerts.go

@@ -0,0 +1,853 @@
+package repository
+
+import (
+	"context"
+	"database/sql"
+	"encoding/json"
+	"fmt"
+	"strings"
+	"time"
+
+	"github.com/Wei-Shaw/sub2api/internal/service"
+)
+
+func (r *opsRepository) ListAlertRules(ctx context.Context) ([]*service.OpsAlertRule, error) {
+	if r == nil || r.db == nil {
+		return nil, fmt.Errorf("nil ops repository")
+	}
+
+	q := `
+SELECT
+  id,
+  name,
+  COALESCE(description, ''),
+  enabled,
+  COALESCE(severity, ''),
+  metric_type,
+  operator,
+  threshold,
+  window_minutes,
+  sustained_minutes,
+  cooldown_minutes,
+  COALESCE(notify_email, true),
+  filters,
+  last_triggered_at,
+  created_at,
+  updated_at
+FROM ops_alert_rules
+ORDER BY id DESC`
+
+	rows, err := r.db.QueryContext(ctx, q)
+	if err != nil {
+		return nil, err
+	}
+	defer func() { _ = rows.Close() }()
+
+	out := []*service.OpsAlertRule{}
+	for rows.Next() {
+		var rule service.OpsAlertRule
+		var filtersRaw []byte
+		var lastTriggeredAt sql.NullTime
+		if err := rows.Scan(
+			&rule.ID,
+			&rule.Name,
+			&rule.Description,
+			&rule.Enabled,
+			&rule.Severity,
+			&rule.MetricType,
+			&rule.Operator,
+			&rule.Threshold,
+			&rule.WindowMinutes,
+			&rule.SustainedMinutes,
+			&rule.CooldownMinutes,
+			&rule.NotifyEmail,
+			&filtersRaw,
+			&lastTriggeredAt,
+			&rule.CreatedAt,
+			&rule.UpdatedAt,
+		); err != nil {
+			return nil, err
+		}
+		if lastTriggeredAt.Valid {
+			v := lastTriggeredAt.Time
+			rule.LastTriggeredAt = &v
+		}
+		if len(filtersRaw) > 0 && string(filtersRaw) != "null" {
+			var decoded map[string]any
+			if err := json.Unmarshal(filtersRaw, &decoded); err == nil {
+				rule.Filters = decoded
+			}
+		}
+		out = append(out, &rule)
+	}
+	if err := rows.Err(); err != nil {
+		return nil, err
+	}
+	return out, nil
+}
+
+func (r *opsRepository) CreateAlertRule(ctx context.Context, input *service.OpsAlertRule) (*service.OpsAlertRule, error) {
+	if r == nil || r.db == nil {
+		return nil, fmt.Errorf("nil ops repository")
+	}
+	if input == nil {
+		return nil, fmt.Errorf("nil input")
+	}
+
+	filtersArg, err := opsNullJSONMap(input.Filters)
+	if err != nil {
+		return nil, err
+	}
+
+	q := `
+INSERT INTO ops_alert_rules (
+  name,
+  description,
+  enabled,
+  severity,
+  metric_type,
+  operator,
+  threshold,
+  window_minutes,
+  sustained_minutes,
+  cooldown_minutes,
+  notify_email,
+  filters,
+  created_at,
+  updated_at
+) VALUES (
+  $1,$2,$3,$4,$5,$6,$7,$8,$9,$10,$11,$12,NOW(),NOW()
+)
+RETURNING
+  id,
+  name,
+  COALESCE(description, ''),
+  enabled,
+  COALESCE(severity, ''),
+  metric_type,
+  operator,
+  threshold,
+  window_minutes,
+  sustained_minutes,
+  cooldown_minutes,
+  COALESCE(notify_email, true),
+  filters,
+  last_triggered_at,
+  created_at,
+  updated_at`
+
+	var out service.OpsAlertRule
+	var filtersRaw []byte
+	var lastTriggeredAt sql.NullTime
+
+	if err := r.db.QueryRowContext(
+		ctx,
+		q,
+		strings.TrimSpace(input.Name),
+		strings.TrimSpace(input.Description),
+		input.Enabled,
+		strings.TrimSpace(input.Severity),
+		strings.TrimSpace(input.MetricType),
+		strings.TrimSpace(input.Operator),
+		input.Threshold,
+		input.WindowMinutes,
+		input.SustainedMinutes,
+		input.CooldownMinutes,
+		input.NotifyEmail,
+		filtersArg,
+	).Scan(
+		&out.ID,
+		&out.Name,
+		&out.Description,
+		&out.Enabled,
+		&out.Severity,
+		&out.MetricType,
+		&out.Operator,
+		&out.Threshold,
+		&out.WindowMinutes,
+		&out.SustainedMinutes,
+		&out.CooldownMinutes,
+		&out.NotifyEmail,
+		&filtersRaw,
+		&lastTriggeredAt,
+		&out.CreatedAt,
+		&out.UpdatedAt,
+	); err != nil {
+		return nil, err
+	}
+	if lastTriggeredAt.Valid {
+		v := lastTriggeredAt.Time
+		out.LastTriggeredAt = &v
+	}
+	if len(filtersRaw) > 0 && string(filtersRaw) != "null" {
+		var decoded map[string]any
+		if err := json.Unmarshal(filtersRaw, &decoded); err == nil {
+			out.Filters = decoded
+		}
+	}
+
+	return &out, nil
+}
+
+func (r *opsRepository) UpdateAlertRule(ctx context.Context, input *service.OpsAlertRule) (*service.OpsAlertRule, error) {
+	if r == nil || r.db == nil {
+		return nil, fmt.Errorf("nil ops repository")
+	}
+	if input == nil {
+		return nil, fmt.Errorf("nil input")
+	}
+	if input.ID <= 0 {
+		return nil, fmt.Errorf("invalid id")
+	}
+
+	filtersArg, err := opsNullJSONMap(input.Filters)
+	if err != nil {
+		return nil, err
+	}
+
+	q := `
+UPDATE ops_alert_rules
+SET
+  name = $2,
+  description = $3,
+  enabled = $4,
+  severity = $5,
+  metric_type = $6,
+  operator = $7,
+  threshold = $8,
+  window_minutes = $9,
+  sustained_minutes = $10,
+  cooldown_minutes = $11,
+  notify_email = $12,
+  filters = $13,
+  updated_at = NOW()
+WHERE id = $1
+RETURNING
+  id,
+  name,
+  COALESCE(description, ''),
+  enabled,
+  COALESCE(severity, ''),
+  metric_type,
+  operator,
+  threshold,
+  window_minutes,
+  sustained_minutes,
+  cooldown_minutes,
+  COALESCE(notify_email, true),
+  filters,
+  last_triggered_at,
+  created_at,
+  updated_at`
+
+	var out service.OpsAlertRule
+	var filtersRaw []byte
+	var lastTriggeredAt sql.NullTime
+
+	if err := r.db.QueryRowContext(
+		ctx,
+		q,
+		input.ID,
+		strings.TrimSpace(input.Name),
+		strings.TrimSpace(input.Description),
+		input.Enabled,
+		strings.TrimSpace(input.Severity),
+		strings.TrimSpace(input.MetricType),
+		strings.TrimSpace(input.Operator),
+		input.Threshold,
+		input.WindowMinutes,
+		input.SustainedMinutes,
+		input.CooldownMinutes,
+		input.NotifyEmail,
+		filtersArg,
+	).Scan(
+		&out.ID,
+		&out.Name,
+		&out.Description,
+		&out.Enabled,
+		&out.Severity,
+		&out.MetricType,
+		&out.Operator,
+		&out.Threshold,
+		&out.WindowMinutes,
+		&out.SustainedMinutes,
+		&out.CooldownMinutes,
+		&out.NotifyEmail,
+		&filtersRaw,
+		&lastTriggeredAt,
+		&out.CreatedAt,
+		&out.UpdatedAt,
+	); err != nil {
+		return nil, err
+	}
+
+	if lastTriggeredAt.Valid {
+		v := lastTriggeredAt.Time
+		out.LastTriggeredAt = &v
+	}
+	if len(filtersRaw) > 0 && string(filtersRaw) != "null" {
+		var decoded map[string]any
+		if err := json.Unmarshal(filtersRaw, &decoded); err == nil {
+			out.Filters = decoded
+		}
+	}
+
+	return &out, nil
+}
+
+func (r *opsRepository) DeleteAlertRule(ctx context.Context, id int64) error {
+	if r == nil || r.db == nil {
+		return fmt.Errorf("nil ops repository")
+	}
+	if id <= 0 {
+		return fmt.Errorf("invalid id")
+	}
+
+	res, err := r.db.ExecContext(ctx, "DELETE FROM ops_alert_rules WHERE id = $1", id)
+	if err != nil {
+		return err
+	}
+	affected, err := res.RowsAffected()
+	if err != nil {
+		return err
+	}
+	if affected == 0 {
+		return sql.ErrNoRows
+	}
+	return nil
+}
+
+func (r *opsRepository) ListAlertEvents(ctx context.Context, filter *service.OpsAlertEventFilter) ([]*service.OpsAlertEvent, error) {
+	if r == nil || r.db == nil {
+		return nil, fmt.Errorf("nil ops repository")
+	}
+	if filter == nil {
+		filter = &service.OpsAlertEventFilter{}
+	}
+
+	limit := filter.Limit
+	if limit <= 0 {
+		limit = 100
+	}
+	if limit > 500 {
+		limit = 500
+	}
+
+	where, args := buildOpsAlertEventsWhere(filter)
+	args = append(args, limit)
+	limitArg := "$" + itoa(len(args))
+
+	q := `
+SELECT
+  id,
+  COALESCE(rule_id, 0),
+  COALESCE(severity, ''),
+  COALESCE(status, ''),
+  COALESCE(title, ''),
+  COALESCE(description, ''),
+  metric_value,
+  threshold_value,
+  dimensions,
+  fired_at,
+  resolved_at,
+  email_sent,
+  created_at
+FROM ops_alert_events
+` + where + `
+ORDER BY fired_at DESC, id DESC
+LIMIT ` + limitArg
+
+	rows, err := r.db.QueryContext(ctx, q, args...)
+	if err != nil {
+		return nil, err
+	}
+	defer func() { _ = rows.Close() }()
+
+	out := []*service.OpsAlertEvent{}
+	for rows.Next() {
+		var ev service.OpsAlertEvent
+		var metricValue sql.NullFloat64
+		var thresholdValue sql.NullFloat64
+		var dimensionsRaw []byte
+		var resolvedAt sql.NullTime
+		if err := rows.Scan(
+			&ev.ID,
+			&ev.RuleID,
+			&ev.Severity,
+			&ev.Status,
+			&ev.Title,
+			&ev.Description,
+			&metricValue,
+			&thresholdValue,
+			&dimensionsRaw,
+			&ev.FiredAt,
+			&resolvedAt,
+			&ev.EmailSent,
+			&ev.CreatedAt,
+		); err != nil {
+			return nil, err
+		}
+		if metricValue.Valid {
+			v := metricValue.Float64
+			ev.MetricValue = &v
+		}
+		if thresholdValue.Valid {
+			v := thresholdValue.Float64
+			ev.ThresholdValue = &v
+		}
+		if resolvedAt.Valid {
+			v := resolvedAt.Time
+			ev.ResolvedAt = &v
+		}
+		if len(dimensionsRaw) > 0 && string(dimensionsRaw) != "null" {
+			var decoded map[string]any
+			if err := json.Unmarshal(dimensionsRaw, &decoded); err == nil {
+				ev.Dimensions = decoded
+			}
+		}
+		out = append(out, &ev)
+	}
+	if err := rows.Err(); err != nil {
+		return nil, err
+	}
+	return out, nil
+}
+
+func (r *opsRepository) GetAlertEventByID(ctx context.Context, eventID int64) (*service.OpsAlertEvent, error) {
+	if r == nil || r.db == nil {
+		return nil, fmt.Errorf("nil ops repository")
+	}
+	if eventID <= 0 {
+		return nil, fmt.Errorf("invalid event id")
+	}
+
+	q := `
+SELECT
+  id,
+  COALESCE(rule_id, 0),
+  COALESCE(severity, ''),
+  COALESCE(status, ''),
+  COALESCE(title, ''),
+  COALESCE(description, ''),
+  metric_value,
+  threshold_value,
+  dimensions,
+  fired_at,
+  resolved_at,
+  email_sent,
+  created_at
+FROM ops_alert_events
+WHERE id = $1`
+
+	row := r.db.QueryRowContext(ctx, q, eventID)
+	ev, err := scanOpsAlertEvent(row)
+	if err != nil {
+		if err == sql.ErrNoRows {
+			return nil, nil
+		}
+		return nil, err
+	}
+	return ev, nil
+}
+
+func (r *opsRepository) GetActiveAlertEvent(ctx context.Context, ruleID int64) (*service.OpsAlertEvent, error) {
+	if r == nil || r.db == nil {
+		return nil, fmt.Errorf("nil ops repository")
+	}
+	if ruleID <= 0 {
+		return nil, fmt.Errorf("invalid rule id")
+	}
+
+	q := `
+SELECT
+  id,
+  COALESCE(rule_id, 0),
+  COALESCE(severity, ''),
+  COALESCE(status, ''),
+  COALESCE(title, ''),
+  COALESCE(description, ''),
+  metric_value,
+  threshold_value,
+  dimensions,
+  fired_at,
+  resolved_at,
+  email_sent,
+  created_at
+FROM ops_alert_events
+WHERE rule_id = $1 AND status = $2
+ORDER BY fired_at DESC
+LIMIT 1`
+
+	row := r.db.QueryRowContext(ctx, q, ruleID, service.OpsAlertStatusFiring)
+	ev, err := scanOpsAlertEvent(row)
+	if err != nil {
+		if err == sql.ErrNoRows {
+			return nil, nil
+		}
+		return nil, err
+	}
+	return ev, nil
+}
+
+func (r *opsRepository) GetLatestAlertEvent(ctx context.Context, ruleID int64) (*service.OpsAlertEvent, error) {
+	if r == nil || r.db == nil {
+		return nil, fmt.Errorf("nil ops repository")
+	}
+	if ruleID <= 0 {
+		return nil, fmt.Errorf("invalid rule id")
+	}
+
+	q := `
+SELECT
+  id,
+  COALESCE(rule_id, 0),
+  COALESCE(severity, ''),
+  COALESCE(status, ''),
+  COALESCE(title, ''),
+  COALESCE(description, ''),
+  metric_value,
+  threshold_value,
+  dimensions,
+  fired_at,
+  resolved_at,
+  email_sent,
+  created_at
+FROM ops_alert_events
+WHERE rule_id = $1
+ORDER BY fired_at DESC
+LIMIT 1`
+
+	row := r.db.QueryRowContext(ctx, q, ruleID)
+	ev, err := scanOpsAlertEvent(row)
+	if err != nil {
+		if err == sql.ErrNoRows {
+			return nil, nil
+		}
+		return nil, err
+	}
+	return ev, nil
+}
+
+func (r *opsRepository) CreateAlertEvent(ctx context.Context, event *service.OpsAlertEvent) (*service.OpsAlertEvent, error) {
+	if r == nil || r.db == nil {
+		return nil, fmt.Errorf("nil ops repository")
+	}
+	if event == nil {
+		return nil, fmt.Errorf("nil event")
+	}
+
+	dimensionsArg, err := opsNullJSONMap(event.Dimensions)
+	if err != nil {
+		return nil, err
+	}
+
+	q := `
+INSERT INTO ops_alert_events (
+  rule_id,
+  severity,
+  status,
+  title,
+  description,
+  metric_value,
+  threshold_value,
+  dimensions,
+  fired_at,
+  resolved_at,
+  email_sent,
+  created_at
+) VALUES (
+  $1,$2,$3,$4,$5,$6,$7,$8,$9,$10,$11,NOW()
+)
+RETURNING
+  id,
+  COALESCE(rule_id, 0),
+  COALESCE(severity, ''),
+  COALESCE(status, ''),
+  COALESCE(title, ''),
+  COALESCE(description, ''),
+  metric_value,
+  threshold_value,
+  dimensions,
+  fired_at,
+  resolved_at,
+  email_sent,
+  created_at`
+
+	row := r.db.QueryRowContext(
+		ctx,
+		q,
+		opsNullInt64(&event.RuleID),
+		opsNullString(event.Severity),
+		opsNullString(event.Status),
+		opsNullString(event.Title),
+		opsNullString(event.Description),
+		opsNullFloat64(event.MetricValue),
+		opsNullFloat64(event.ThresholdValue),
+		dimensionsArg,
+		event.FiredAt,
+		opsNullTime(event.ResolvedAt),
+		event.EmailSent,
+	)
+	return scanOpsAlertEvent(row)
+}
+
+func (r *opsRepository) UpdateAlertEventStatus(ctx context.Context, eventID int64, status string, resolvedAt *time.Time) error {
+	if r == nil || r.db == nil {
+		return fmt.Errorf("nil ops repository")
+	}
+	if eventID <= 0 {
+		return fmt.Errorf("invalid event id")
+	}
+	if strings.TrimSpace(status) == "" {
+		return fmt.Errorf("invalid status")
+	}
+
+	q := `
+UPDATE ops_alert_events
+SET status = $2,
+    resolved_at = $3
+WHERE id = $1`
+
+	_, err := r.db.ExecContext(ctx, q, eventID, strings.TrimSpace(status), opsNullTime(resolvedAt))
+	return err
+}
+
+func (r *opsRepository) UpdateAlertEventEmailSent(ctx context.Context, eventID int64, emailSent bool) error {
+	if r == nil || r.db == nil {
+		return fmt.Errorf("nil ops repository")
+	}
+	if eventID <= 0 {
+		return fmt.Errorf("invalid event id")
+	}
+
+	_, err := r.db.ExecContext(ctx, "UPDATE ops_alert_events SET email_sent = $2 WHERE id = $1", eventID, emailSent)
+	return err
+}
+
+type opsAlertEventRow interface {
+	Scan(dest ...any) error
+}
+
+func (r *opsRepository) CreateAlertSilence(ctx context.Context, input *service.OpsAlertSilence) (*service.OpsAlertSilence, error) {
+	if r == nil || r.db == nil {
+		return nil, fmt.Errorf("nil ops repository")
+	}
+	if input == nil {
+		return nil, fmt.Errorf("nil input")
+	}
+	if input.RuleID <= 0 {
+		return nil, fmt.Errorf("invalid rule_id")
+	}
+	platform := strings.TrimSpace(input.Platform)
+	if platform == "" {
+		return nil, fmt.Errorf("invalid platform")
+	}
+	if input.Until.IsZero() {
+		return nil, fmt.Errorf("invalid until")
+	}
+
+	q := `
+INSERT INTO ops_alert_silences (
+  rule_id,
+  platform,
+  group_id,
+  region,
+  until,
+  reason,
+  created_by,
+  created_at
+) VALUES (
+  $1,$2,$3,$4,$5,$6,$7,NOW()
+)
+RETURNING id, rule_id, platform, group_id, region, until, COALESCE(reason,''), created_by, created_at`
+
+	row := r.db.QueryRowContext(
+		ctx,
+		q,
+		input.RuleID,
+		platform,
+		opsNullInt64(input.GroupID),
+		opsNullString(input.Region),
+		input.Until,
+		opsNullString(input.Reason),
+		opsNullInt64(input.CreatedBy),
+	)
+
+	var out service.OpsAlertSilence
+	var groupID sql.NullInt64
+	var region sql.NullString
+	var createdBy sql.NullInt64
+	if err := row.Scan(
+		&out.ID,
+		&out.RuleID,
+		&out.Platform,
+		&groupID,
+		&region,
+		&out.Until,
+		&out.Reason,
+		&createdBy,
+		&out.CreatedAt,
+	); err != nil {
+		return nil, err
+	}
+	if groupID.Valid {
+		v := groupID.Int64
+		out.GroupID = &v
+	}
+	if region.Valid {
+		v := strings.TrimSpace(region.String)
+		if v != "" {
+			out.Region = &v
+		}
+	}
+	if createdBy.Valid {
+		v := createdBy.Int64
+		out.CreatedBy = &v
+	}
+	return &out, nil
+}
+
+func (r *opsRepository) IsAlertSilenced(ctx context.Context, ruleID int64, platform string, groupID *int64, region *string, now time.Time) (bool, error) {
+	if r == nil || r.db == nil {
+		return false, fmt.Errorf("nil ops repository")
+	}
+	if ruleID <= 0 {
+		return false, fmt.Errorf("invalid rule id")
+	}
+	platform = strings.TrimSpace(platform)
+	if platform == "" {
+		return false, nil
+	}
+	if now.IsZero() {
+		now = time.Now().UTC()
+	}
+
+	q := `
+SELECT 1
+FROM ops_alert_silences
+WHERE rule_id = $1
+  AND platform = $2
+  AND (group_id IS NOT DISTINCT FROM $3)
+  AND (region IS NOT DISTINCT FROM $4)
+  AND until > $5
+LIMIT 1`
+
+	var dummy int
+	err := r.db.QueryRowContext(ctx, q, ruleID, platform, opsNullInt64(groupID), opsNullString(region), now).Scan(&dummy)
+	if err != nil {
+		if err == sql.ErrNoRows {
+			return false, nil
+		}
+		return false, err
+	}
+	return true, nil
+}
+
+func scanOpsAlertEvent(row opsAlertEventRow) (*service.OpsAlertEvent, error) {
+	var ev service.OpsAlertEvent
+	var metricValue sql.NullFloat64
+	var thresholdValue sql.NullFloat64
+	var dimensionsRaw []byte
+	var resolvedAt sql.NullTime
+
+	if err := row.Scan(
+		&ev.ID,
+		&ev.RuleID,
+		&ev.Severity,
+		&ev.Status,
+		&ev.Title,
+		&ev.Description,
+		&metricValue,
+		&thresholdValue,
+		&dimensionsRaw,
+		&ev.FiredAt,
+		&resolvedAt,
+		&ev.EmailSent,
+		&ev.CreatedAt,
+	); err != nil {
+		return nil, err
+	}
+	if metricValue.Valid {
+		v := metricValue.Float64
+		ev.MetricValue = &v
+	}
+	if thresholdValue.Valid {
+		v := thresholdValue.Float64
+		ev.ThresholdValue = &v
+	}
+	if resolvedAt.Valid {
+		v := resolvedAt.Time
+		ev.ResolvedAt = &v
+	}
+	if len(dimensionsRaw) > 0 && string(dimensionsRaw) != "null" {
+		var decoded map[string]any
+		if err := json.Unmarshal(dimensionsRaw, &decoded); err == nil {
+			ev.Dimensions = decoded
+		}
+	}
+	return &ev, nil
+}
+
+func buildOpsAlertEventsWhere(filter *service.OpsAlertEventFilter) (string, []any) {
+	clauses := []string{"1=1"}
+	args := []any{}
+
+	if filter == nil {
+		return "WHERE " + strings.Join(clauses, " AND "), args
+	}
+
+	if status := strings.TrimSpace(filter.Status); status != "" {
+		args = append(args, status)
+		clauses = append(clauses, "status = $"+itoa(len(args)))
+	}
+	if severity := strings.TrimSpace(filter.Severity); severity != "" {
+		args = append(args, severity)
+		clauses = append(clauses, "severity = $"+itoa(len(args)))
+	}
+	if filter.EmailSent != nil {
+		args = append(args, *filter.EmailSent)
+		clauses = append(clauses, "email_sent = $"+itoa(len(args)))
+	}
+	if filter.StartTime != nil && !filter.StartTime.IsZero() {
+		args = append(args, *filter.StartTime)
+		clauses = append(clauses, "fired_at >= $"+itoa(len(args)))
+	}
+	if filter.EndTime != nil && !filter.EndTime.IsZero() {
+		args = append(args, *filter.EndTime)
+		clauses = append(clauses, "fired_at < $"+itoa(len(args)))
+	}
+
+	// Cursor pagination (descending by fired_at, then id)
+	if filter.BeforeFiredAt != nil && !filter.BeforeFiredAt.IsZero() && filter.BeforeID != nil && *filter.BeforeID > 0 {
+		args = append(args, *filter.BeforeFiredAt)
+		tsArg := "$" + itoa(len(args))
+		args = append(args, *filter.BeforeID)
+		idArg := "$" + itoa(len(args))
+		clauses = append(clauses, fmt.Sprintf("(fired_at < %s OR (fired_at = %s AND id < %s))", tsArg, tsArg, idArg))
+	}
+	// Dimensions are stored in JSONB. We filter best-effort without requiring GIN indexes.
+	if platform := strings.TrimSpace(filter.Platform); platform != "" {
+		args = append(args, platform)
+		clauses = append(clauses, "(dimensions->>'platform') = $"+itoa(len(args)))
+	}
+	if filter.GroupID != nil && *filter.GroupID > 0 {
+		args = append(args, fmt.Sprintf("%d", *filter.GroupID))
+		clauses = append(clauses, "(dimensions->>'group_id') = $"+itoa(len(args)))
+	}
+
+	return "WHERE " + strings.Join(clauses, " AND "), args
+}
+
+func opsNullJSONMap(v map[string]any) (any, error) {
+	if v == nil {
+		return sql.NullString{}, nil
+	}
+	b, err := json.Marshal(v)
+	if err != nil {
+		return nil, err
+	}
+	if len(b) == 0 {
+		return sql.NullString{}, nil
+	}
+	return sql.NullString{String: string(b), Valid: true}, nil
+}

llm-gateway-competitors/sub2api-tar/backend/internal/repository/ops_repo_dashboard_timeout_test.go

@@ -0,0 +1,22 @@
+package repository
+
+import (
+	"context"
+	"fmt"
+	"testing"
+)
+
+func TestIsQueryTimeoutErr(t *testing.T) {
+	if !isQueryTimeoutErr(context.DeadlineExceeded) {
+		t.Fatalf("context.DeadlineExceeded should be treated as query timeout")
+	}
+	if !isQueryTimeoutErr(fmt.Errorf("wrapped: %w", context.DeadlineExceeded)) {
+		t.Fatalf("wrapped context.DeadlineExceeded should be treated as query timeout")
+	}
+	if isQueryTimeoutErr(context.Canceled) {
+		t.Fatalf("context.Canceled should not be treated as query timeout")
+	}
+	if isQueryTimeoutErr(fmt.Errorf("wrapped: %w", context.Canceled)) {
+		t.Fatalf("wrapped context.Canceled should not be treated as query timeout")
+	}
+}

llm-gateway-competitors/sub2api-tar/backend/internal/repository/ops_repo_error_where_test.go

@@ -0,0 +1,48 @@
+package repository
+
+import (
+	"strings"
+	"testing"
+
+	"github.com/Wei-Shaw/sub2api/internal/service"
+)
+
+func TestBuildOpsErrorLogsWhere_QueryUsesQualifiedColumns(t *testing.T) {
+	filter := &service.OpsErrorLogFilter{
+		Query: "ACCESS_DENIED",
+	}
+
+	where, args := buildOpsErrorLogsWhere(filter)
+	if where == "" {
+		t.Fatalf("where should not be empty")
+	}
+	if len(args) != 1 {
+		t.Fatalf("args len = %d, want 1", len(args))
+	}
+	if !strings.Contains(where, "e.request_id ILIKE $") {
+		t.Fatalf("where should include qualified request_id condition: %s", where)
+	}
+	if !strings.Contains(where, "e.client_request_id ILIKE $") {
+		t.Fatalf("where should include qualified client_request_id condition: %s", where)
+	}
+	if !strings.Contains(where, "e.error_message ILIKE $") {
+		t.Fatalf("where should include qualified error_message condition: %s", where)
+	}
+}
+
+func TestBuildOpsErrorLogsWhere_UserQueryUsesExistsSubquery(t *testing.T) {
+	filter := &service.OpsErrorLogFilter{
+		UserQuery: "admin@",
+	}
+
+	where, args := buildOpsErrorLogsWhere(filter)
+	if where == "" {
+		t.Fatalf("where should not be empty")
+	}
+	if len(args) != 1 {
+		t.Fatalf("args len = %d, want 1", len(args))
+	}
+	if !strings.Contains(where, "EXISTS (SELECT 1 FROM users u WHERE u.id = e.user_id AND u.email ILIKE $") {
+		t.Fatalf("where should include EXISTS user email condition: %s", where)
+	}
+}

llm-gateway-competitors/sub2api-tar/backend/internal/repository/ops_repo_histograms.go

@@ -0,0 +1,79 @@
+package repository
+
+import (
+	"context"
+	"fmt"
+	"strings"
+
+	"github.com/Wei-Shaw/sub2api/internal/service"
+)
+
+func (r *opsRepository) GetLatencyHistogram(ctx context.Context, filter *service.OpsDashboardFilter) (*service.OpsLatencyHistogramResponse, error) {
+	if r == nil || r.db == nil {
+		return nil, fmt.Errorf("nil ops repository")
+	}
+	if filter == nil {
+		return nil, fmt.Errorf("nil filter")
+	}
+	if filter.StartTime.IsZero() || filter.EndTime.IsZero() {
+		return nil, fmt.Errorf("start_time/end_time required")
+	}
+
+	start := filter.StartTime.UTC()
+	end := filter.EndTime.UTC()
+
+	join, where, args, _ := buildUsageWhere(filter, start, end, 1)
+	rangeExpr := latencyHistogramRangeCaseExpr("ul.duration_ms")
+	orderExpr := latencyHistogramRangeOrderCaseExpr("ul.duration_ms")
+
+	q := `
+SELECT
+  ` + rangeExpr + ` AS range,
+  COALESCE(COUNT(*), 0) AS count,
+  ` + orderExpr + ` AS ord
+FROM usage_logs ul
+` + join + `
+` + where + `
+AND ul.duration_ms IS NOT NULL
+GROUP BY 1, 3
+ORDER BY 3 ASC`
+
+	rows, err := r.db.QueryContext(ctx, q, args...)
+	if err != nil {
+		return nil, err
+	}
+	defer func() { _ = rows.Close() }()
+
+	counts := make(map[string]int64, len(latencyHistogramOrderedRanges))
+	var total int64
+	for rows.Next() {
+		var label string
+		var count int64
+		var _ord int
+		if err := rows.Scan(&label, &count, &_ord); err != nil {
+			return nil, err
+		}
+		counts[label] = count
+		total += count
+	}
+	if err := rows.Err(); err != nil {
+		return nil, err
+	}
+
+	buckets := make([]*service.OpsLatencyHistogramBucket, 0, len(latencyHistogramOrderedRanges))
+	for _, label := range latencyHistogramOrderedRanges {
+		buckets = append(buckets, &service.OpsLatencyHistogramBucket{
+			Range: label,
+			Count: counts[label],
+		})
+	}
+
+	return &service.OpsLatencyHistogramResponse{
+		StartTime:     start,
+		EndTime:       end,
+		Platform:      strings.TrimSpace(filter.Platform),
+		GroupID:       filter.GroupID,
+		TotalRequests: total,
+		Buckets:       buckets,
+	}, nil
+}

llm-gateway-competitors/sub2api-tar/backend/internal/repository/ops_repo_latency_histogram_buckets.go

@@ -0,0 +1,64 @@
+package repository
+
+import (
+	"fmt"
+	"strings"
+)
+
+type latencyHistogramBucket struct {
+	upperMs int
+	label   string
+}
+
+var latencyHistogramBuckets = []latencyHistogramBucket{
+	{upperMs: 100, label: "0-100ms"},
+	{upperMs: 200, label: "100-200ms"},
+	{upperMs: 500, label: "200-500ms"},
+	{upperMs: 1000, label: "500-1000ms"},
+	{upperMs: 2000, label: "1000-2000ms"},
+	{upperMs: 0, label: "2000ms+"}, // default bucket
+}
+
+var latencyHistogramOrderedRanges = func() []string {
+	out := make([]string, 0, len(latencyHistogramBuckets))
+	for _, b := range latencyHistogramBuckets {
+		out = append(out, b.label)
+	}
+	return out
+}()
+
+func latencyHistogramRangeCaseExpr(column string) string {
+	var sb strings.Builder
+	_, _ = sb.WriteString("CASE\n")
+
+	for _, b := range latencyHistogramBuckets {
+		if b.upperMs <= 0 {
+			continue
+		}
+		fmt.Fprintf(&sb, "\tWHEN %s < %d THEN '%s'\n", column, b.upperMs, b.label)
+	}
+
+	// Default bucket.
+	last := latencyHistogramBuckets[len(latencyHistogramBuckets)-1]
+	fmt.Fprintf(&sb, "\tELSE '%s'\n", last.label)
+	_, _ = sb.WriteString("END")
+	return sb.String()
+}
+
+func latencyHistogramRangeOrderCaseExpr(column string) string {
+	var sb strings.Builder
+	_, _ = sb.WriteString("CASE\n")
+
+	order := 1
+	for _, b := range latencyHistogramBuckets {
+		if b.upperMs <= 0 {
+			continue
+		}
+		fmt.Fprintf(&sb, "\tWHEN %s < %d THEN %d\n", column, b.upperMs, order)
+		order++
+	}
+
+	fmt.Fprintf(&sb, "\tELSE %d\n", order)
+	_, _ = sb.WriteString("END")
+	return sb.String()
+}

llm-gateway-competitors/sub2api-tar/backend/internal/repository/ops_repo_latency_histogram_buckets_test.go

@@ -0,0 +1,14 @@
+package repository
+
+import (
+	"testing"
+
+	"github.com/stretchr/testify/require"
+)
+
+func TestLatencyHistogramBuckets_AreConsistent(t *testing.T) {
+	require.Equal(t, len(latencyHistogramBuckets), len(latencyHistogramOrderedRanges))
+	for i, b := range latencyHistogramBuckets {
+		require.Equal(t, b.label, latencyHistogramOrderedRanges[i])
+	}
+}

llm-gateway-competitors/sub2api-tar/backend/internal/repository/ops_repo_metrics.go

@@ -0,0 +1,445 @@
+package repository
+
+import (
+	"context"
+	"database/sql"
+	"fmt"
+	"time"
+
+	"github.com/Wei-Shaw/sub2api/internal/service"
+)
+
+func (r *opsRepository) InsertSystemMetrics(ctx context.Context, input *service.OpsInsertSystemMetricsInput) error {
+	if r == nil || r.db == nil {
+		return fmt.Errorf("nil ops repository")
+	}
+	if input == nil {
+		return fmt.Errorf("nil input")
+	}
+
+	window := input.WindowMinutes
+	if window <= 0 {
+		window = 1
+	}
+	createdAt := input.CreatedAt
+	if createdAt.IsZero() {
+		createdAt = time.Now().UTC()
+	}
+
+	q := `
+INSERT INTO ops_system_metrics (
+  created_at,
+  window_minutes,
+  platform,
+  group_id,
+
+  success_count,
+  error_count_total,
+  business_limited_count,
+  error_count_sla,
+
+  upstream_error_count_excl_429_529,
+  upstream_429_count,
+  upstream_529_count,
+
+  token_consumed,
+  account_switch_count,
+  qps,
+  tps,
+
+  duration_p50_ms,
+  duration_p90_ms,
+  duration_p95_ms,
+  duration_p99_ms,
+  duration_avg_ms,
+  duration_max_ms,
+
+  ttft_p50_ms,
+  ttft_p90_ms,
+  ttft_p95_ms,
+  ttft_p99_ms,
+  ttft_avg_ms,
+  ttft_max_ms,
+
+  cpu_usage_percent,
+  memory_used_mb,
+  memory_total_mb,
+  memory_usage_percent,
+
+  db_ok,
+  redis_ok,
+
+  redis_conn_total,
+  redis_conn_idle,
+
+  db_conn_active,
+  db_conn_idle,
+  db_conn_waiting,
+
+  goroutine_count,
+  concurrency_queue_depth
+) VALUES (
+  $1,$2,$3,$4,
+  $5,$6,$7,$8,
+  $9,$10,$11,
+  $12,$13,$14,$15,
+  $16,$17,$18,$19,$20,$21,
+  $22,$23,$24,$25,$26,$27,
+  $28,$29,$30,$31,
+  $32,$33,
+  $34,$35,
+  $36,$37,$38,
+  $39,$40
+)`
+
+	_, err := r.db.ExecContext(
+		ctx,
+		q,
+		createdAt,
+		window,
+		opsNullString(input.Platform),
+		opsNullInt64(input.GroupID),
+
+		input.SuccessCount,
+		input.ErrorCountTotal,
+		input.BusinessLimitedCount,
+		input.ErrorCountSLA,
+
+		input.UpstreamErrorCountExcl429529,
+		input.Upstream429Count,
+		input.Upstream529Count,
+
+		input.TokenConsumed,
+		input.AccountSwitchCount,
+		opsNullFloat64(input.QPS),
+		opsNullFloat64(input.TPS),
+
+		opsNullInt(input.DurationP50Ms),
+		opsNullInt(input.DurationP90Ms),
+		opsNullInt(input.DurationP95Ms),
+		opsNullInt(input.DurationP99Ms),
+		opsNullFloat64(input.DurationAvgMs),
+		opsNullInt(input.DurationMaxMs),
+
+		opsNullInt(input.TTFTP50Ms),
+		opsNullInt(input.TTFTP90Ms),
+		opsNullInt(input.TTFTP95Ms),
+		opsNullInt(input.TTFTP99Ms),
+		opsNullFloat64(input.TTFTAvgMs),
+		opsNullInt(input.TTFTMaxMs),
+
+		opsNullFloat64(input.CPUUsagePercent),
+		opsNullInt(input.MemoryUsedMB),
+		opsNullInt(input.MemoryTotalMB),
+		opsNullFloat64(input.MemoryUsagePercent),
+
+		opsNullBool(input.DBOK),
+		opsNullBool(input.RedisOK),
+
+		opsNullInt(input.RedisConnTotal),
+		opsNullInt(input.RedisConnIdle),
+
+		opsNullInt(input.DBConnActive),
+		opsNullInt(input.DBConnIdle),
+		opsNullInt(input.DBConnWaiting),
+
+		opsNullInt(input.GoroutineCount),
+		opsNullInt(input.ConcurrencyQueueDepth),
+	)
+	return err
+}
+
+func (r *opsRepository) GetLatestSystemMetrics(ctx context.Context, windowMinutes int) (*service.OpsSystemMetricsSnapshot, error) {
+	if r == nil || r.db == nil {
+		return nil, fmt.Errorf("nil ops repository")
+	}
+	if windowMinutes <= 0 {
+		windowMinutes = 1
+	}
+
+	q := `
+SELECT
+  id,
+  created_at,
+  window_minutes,
+
+  cpu_usage_percent,
+  memory_used_mb,
+  memory_total_mb,
+  memory_usage_percent,
+
+  db_ok,
+  redis_ok,
+
+  redis_conn_total,
+  redis_conn_idle,
+
+  db_conn_active,
+  db_conn_idle,
+  db_conn_waiting,
+
+  goroutine_count,
+  concurrency_queue_depth,
+  account_switch_count
+FROM ops_system_metrics
+WHERE window_minutes = $1
+  AND platform IS NULL
+  AND group_id IS NULL
+ORDER BY created_at DESC
+LIMIT 1`
+
+	var out service.OpsSystemMetricsSnapshot
+	var cpu sql.NullFloat64
+	var memUsed sql.NullInt64
+	var memTotal sql.NullInt64
+	var memPct sql.NullFloat64
+	var dbOK sql.NullBool
+	var redisOK sql.NullBool
+	var redisTotal sql.NullInt64
+	var redisIdle sql.NullInt64
+	var dbActive sql.NullInt64
+	var dbIdle sql.NullInt64
+	var dbWaiting sql.NullInt64
+	var goroutines sql.NullInt64
+	var queueDepth sql.NullInt64
+	var accountSwitchCount sql.NullInt64
+
+	if err := r.db.QueryRowContext(ctx, q, windowMinutes).Scan(
+		&out.ID,
+		&out.CreatedAt,
+		&out.WindowMinutes,
+		&cpu,
+		&memUsed,
+		&memTotal,
+		&memPct,
+		&dbOK,
+		&redisOK,
+		&redisTotal,
+		&redisIdle,
+		&dbActive,
+		&dbIdle,
+		&dbWaiting,
+		&goroutines,
+		&queueDepth,
+		&accountSwitchCount,
+	); err != nil {
+		return nil, err
+	}
+
+	if cpu.Valid {
+		v := cpu.Float64
+		out.CPUUsagePercent = &v
+	}
+	if memUsed.Valid {
+		v := memUsed.Int64
+		out.MemoryUsedMB = &v
+	}
+	if memTotal.Valid {
+		v := memTotal.Int64
+		out.MemoryTotalMB = &v
+	}
+	if memPct.Valid {
+		v := memPct.Float64
+		out.MemoryUsagePercent = &v
+	}
+	if dbOK.Valid {
+		v := dbOK.Bool
+		out.DBOK = &v
+	}
+	if redisOK.Valid {
+		v := redisOK.Bool
+		out.RedisOK = &v
+	}
+	if redisTotal.Valid {
+		v := int(redisTotal.Int64)
+		out.RedisConnTotal = &v
+	}
+	if redisIdle.Valid {
+		v := int(redisIdle.Int64)
+		out.RedisConnIdle = &v
+	}
+	if dbActive.Valid {
+		v := int(dbActive.Int64)
+		out.DBConnActive = &v
+	}
+	if dbIdle.Valid {
+		v := int(dbIdle.Int64)
+		out.DBConnIdle = &v
+	}
+	if dbWaiting.Valid {
+		v := int(dbWaiting.Int64)
+		out.DBConnWaiting = &v
+	}
+	if goroutines.Valid {
+		v := int(goroutines.Int64)
+		out.GoroutineCount = &v
+	}
+	if queueDepth.Valid {
+		v := int(queueDepth.Int64)
+		out.ConcurrencyQueueDepth = &v
+	}
+	if accountSwitchCount.Valid {
+		v := accountSwitchCount.Int64
+		out.AccountSwitchCount = &v
+	}
+
+	return &out, nil
+}
+
+func (r *opsRepository) UpsertJobHeartbeat(ctx context.Context, input *service.OpsUpsertJobHeartbeatInput) error {
+	if r == nil || r.db == nil {
+		return fmt.Errorf("nil ops repository")
+	}
+	if input == nil {
+		return fmt.Errorf("nil input")
+	}
+	if input.JobName == "" {
+		return fmt.Errorf("job_name required")
+	}
+
+	q := `
+INSERT INTO ops_job_heartbeats (
+  job_name,
+  last_run_at,
+  last_success_at,
+  last_error_at,
+  last_error,
+  last_duration_ms,
+  last_result,
+  updated_at
+) VALUES (
+  $1,$2,$3,$4,$5,$6,$7,NOW()
+)
+ON CONFLICT (job_name) DO UPDATE SET
+  last_run_at = COALESCE(EXCLUDED.last_run_at, ops_job_heartbeats.last_run_at),
+  last_success_at = COALESCE(EXCLUDED.last_success_at, ops_job_heartbeats.last_success_at),
+  last_error_at = CASE
+    WHEN EXCLUDED.last_success_at IS NOT NULL THEN NULL
+    ELSE COALESCE(EXCLUDED.last_error_at, ops_job_heartbeats.last_error_at)
+  END,
+  last_error = CASE
+    WHEN EXCLUDED.last_success_at IS NOT NULL THEN NULL
+    ELSE COALESCE(EXCLUDED.last_error, ops_job_heartbeats.last_error)
+  END,
+  last_duration_ms = COALESCE(EXCLUDED.last_duration_ms, ops_job_heartbeats.last_duration_ms),
+  last_result = CASE
+    WHEN EXCLUDED.last_success_at IS NOT NULL THEN COALESCE(EXCLUDED.last_result, ops_job_heartbeats.last_result)
+    ELSE ops_job_heartbeats.last_result
+  END,
+  updated_at = NOW()`
+
+	_, err := r.db.ExecContext(
+		ctx,
+		q,
+		input.JobName,
+		opsNullTime(input.LastRunAt),
+		opsNullTime(input.LastSuccessAt),
+		opsNullTime(input.LastErrorAt),
+		opsNullString(input.LastError),
+		opsNullInt(input.LastDurationMs),
+		opsNullString(input.LastResult),
+	)
+	return err
+}
+
+func (r *opsRepository) ListJobHeartbeats(ctx context.Context) ([]*service.OpsJobHeartbeat, error) {
+	if r == nil || r.db == nil {
+		return nil, fmt.Errorf("nil ops repository")
+	}
+
+	q := `
+SELECT
+  job_name,
+  last_run_at,
+  last_success_at,
+  last_error_at,
+  last_error,
+  last_duration_ms,
+  last_result,
+  updated_at
+FROM ops_job_heartbeats
+ORDER BY job_name ASC`
+
+	rows, err := r.db.QueryContext(ctx, q)
+	if err != nil {
+		return nil, err
+	}
+	defer func() { _ = rows.Close() }()
+
+	out := make([]*service.OpsJobHeartbeat, 0, 8)
+	for rows.Next() {
+		var item service.OpsJobHeartbeat
+		var lastRun sql.NullTime
+		var lastSuccess sql.NullTime
+		var lastErrorAt sql.NullTime
+		var lastError sql.NullString
+		var lastDuration sql.NullInt64
+
+		var lastResult sql.NullString
+
+		if err := rows.Scan(
+			&item.JobName,
+			&lastRun,
+			&lastSuccess,
+			&lastErrorAt,
+			&lastError,
+			&lastDuration,
+			&lastResult,
+			&item.UpdatedAt,
+		); err != nil {
+			return nil, err
+		}
+
+		if lastRun.Valid {
+			v := lastRun.Time
+			item.LastRunAt = &v
+		}
+		if lastSuccess.Valid {
+			v := lastSuccess.Time
+			item.LastSuccessAt = &v
+		}
+		if lastErrorAt.Valid {
+			v := lastErrorAt.Time
+			item.LastErrorAt = &v
+		}
+		if lastError.Valid {
+			v := lastError.String
+			item.LastError = &v
+		}
+		if lastDuration.Valid {
+			v := lastDuration.Int64
+			item.LastDurationMs = &v
+		}
+		if lastResult.Valid {
+			v := lastResult.String
+			item.LastResult = &v
+		}
+
+		out = append(out, &item)
+	}
+	if err := rows.Err(); err != nil {
+		return nil, err
+	}
+	return out, nil
+}
+
+func opsNullBool(v *bool) any {
+	if v == nil {
+		return sql.NullBool{}
+	}
+	return sql.NullBool{Bool: *v, Valid: true}
+}
+
+func opsNullFloat64(v *float64) any {
+	if v == nil {
+		return sql.NullFloat64{}
+	}
+	return sql.NullFloat64{Float64: *v, Valid: true}
+}
+
+func opsNullTime(v *time.Time) any {
+	if v == nil || v.IsZero() {
+		return sql.NullTime{}
+	}
+	return sql.NullTime{Time: *v, Valid: true}
+}

llm-gateway-competitors/sub2api-tar/backend/internal/repository/ops_repo_openai_token_stats.go

@@ -0,0 +1,145 @@
+package repository
+
+import (
+	"context"
+	"database/sql"
+	"fmt"
+	"strings"
+
+	"github.com/Wei-Shaw/sub2api/internal/service"
+)
+
+func (r *opsRepository) GetOpenAITokenStats(ctx context.Context, filter *service.OpsOpenAITokenStatsFilter) (*service.OpsOpenAITokenStatsResponse, error) {
+	if r == nil || r.db == nil {
+		return nil, fmt.Errorf("nil ops repository")
+	}
+	if filter == nil {
+		return nil, fmt.Errorf("nil filter")
+	}
+	if filter.StartTime.IsZero() || filter.EndTime.IsZero() {
+		return nil, fmt.Errorf("start_time/end_time required")
+	}
+	// 允许 start_time == end_time（结果为空），与 service 层校验口径保持一致。
+	if filter.StartTime.After(filter.EndTime) {
+		return nil, fmt.Errorf("start_time must be <= end_time")
+	}
+
+	dashboardFilter := &service.OpsDashboardFilter{
+		StartTime: filter.StartTime.UTC(),
+		EndTime:   filter.EndTime.UTC(),
+		Platform:  strings.TrimSpace(strings.ToLower(filter.Platform)),
+		GroupID:   filter.GroupID,
+	}
+
+	join, where, baseArgs, next := buildUsageWhere(dashboardFilter, dashboardFilter.StartTime, dashboardFilter.EndTime, 1)
+	where += " AND ul.model LIKE 'gpt%'"
+
+	baseCTE := `
+WITH stats AS (
+  SELECT
+    ul.model AS model,
+    COUNT(*)::bigint AS request_count,
+    ROUND(
+      AVG(
+        CASE
+          WHEN ul.duration_ms > 0 AND ul.output_tokens > 0
+          THEN ul.output_tokens * 1000.0 / ul.duration_ms
+        END
+      )::numeric,
+      2
+    )::float8 AS avg_tokens_per_sec,
+    ROUND(AVG(ul.first_token_ms)::numeric, 2)::float8 AS avg_first_token_ms,
+    COALESCE(SUM(ul.output_tokens), 0)::bigint AS total_output_tokens,
+    COALESCE(ROUND(AVG(ul.duration_ms)::numeric, 0), 0)::bigint AS avg_duration_ms,
+    COUNT(CASE WHEN ul.first_token_ms IS NOT NULL THEN 1 END)::bigint AS requests_with_first_token
+  FROM usage_logs ul
+  ` + join + `
+  ` + where + `
+  GROUP BY ul.model
+)
+`
+
+	countSQL := baseCTE + `SELECT COUNT(*) FROM stats`
+	var total int64
+	if err := r.db.QueryRowContext(ctx, countSQL, baseArgs...).Scan(&total); err != nil {
+		return nil, err
+	}
+
+	querySQL := baseCTE + `
+SELECT
+  model,
+  request_count,
+  avg_tokens_per_sec,
+  avg_first_token_ms,
+  total_output_tokens,
+  avg_duration_ms,
+  requests_with_first_token
+FROM stats
+ORDER BY request_count DESC, model ASC`
+
+	args := make([]any, 0, len(baseArgs)+2)
+	args = append(args, baseArgs...)
+
+	if filter.IsTopNMode() {
+		querySQL += fmt.Sprintf("\nLIMIT $%d", next)
+		args = append(args, filter.TopN)
+	} else {
+		offset := (filter.Page - 1) * filter.PageSize
+		querySQL += fmt.Sprintf("\nLIMIT $%d OFFSET $%d", next, next+1)
+		args = append(args, filter.PageSize, offset)
+	}
+
+	rows, err := r.db.QueryContext(ctx, querySQL, args...)
+	if err != nil {
+		return nil, err
+	}
+	defer func() { _ = rows.Close() }()
+
+	items := make([]*service.OpsOpenAITokenStatsItem, 0, 32)
+	for rows.Next() {
+		item := &service.OpsOpenAITokenStatsItem{}
+		var avgTPS sql.NullFloat64
+		var avgFirstToken sql.NullFloat64
+		if err := rows.Scan(
+			&item.Model,
+			&item.RequestCount,
+			&avgTPS,
+			&avgFirstToken,
+			&item.TotalOutputTokens,
+			&item.AvgDurationMs,
+			&item.RequestsWithFirstToken,
+		); err != nil {
+			return nil, err
+		}
+		if avgTPS.Valid {
+			v := avgTPS.Float64
+			item.AvgTokensPerSec = &v
+		}
+		if avgFirstToken.Valid {
+			v := avgFirstToken.Float64
+			item.AvgFirstTokenMs = &v
+		}
+		items = append(items, item)
+	}
+	if err := rows.Err(); err != nil {
+		return nil, err
+	}
+
+	resp := &service.OpsOpenAITokenStatsResponse{
+		TimeRange: strings.TrimSpace(filter.TimeRange),
+		StartTime: dashboardFilter.StartTime,
+		EndTime:   dashboardFilter.EndTime,
+		Platform:  dashboardFilter.Platform,
+		GroupID:   dashboardFilter.GroupID,
+		Items:     items,
+		Total:     total,
+	}
+	if filter.IsTopNMode() {
+		topN := filter.TopN
+		resp.TopN = &topN
+	} else {
+		resp.Page = filter.Page
+		resp.PageSize = filter.PageSize
+	}
+	return resp, nil
+}

llm-gateway-competitors/sub2api-tar/backend/internal/repository/ops_repo_openai_token_stats_test.go

@@ -0,0 +1,156 @@
+package repository
+
+import (
+	"context"
+	"testing"
+	"time"
+
+	"github.com/DATA-DOG/go-sqlmock"
+	"github.com/Wei-Shaw/sub2api/internal/service"
+	"github.com/stretchr/testify/require"
+)
+
+func TestOpsRepositoryGetOpenAITokenStats_PaginationMode(t *testing.T) {
+	db, mock := newSQLMock(t)
+	repo := &opsRepository{db: db}
+
+	start := time.Date(2026, 1, 1, 0, 0, 0, 0, time.UTC)
+	end := start.Add(24 * time.Hour)
+	groupID := int64(9)
+
+	filter := &service.OpsOpenAITokenStatsFilter{
+		TimeRange: "1d",
+		StartTime: start,
+		EndTime:   end,
+		Platform:  " OpenAI ",
+		GroupID:   &groupID,
+		Page:      2,
+		PageSize:  10,
+	}
+
+	mock.ExpectQuery(`SELECT COUNT\(\*\) FROM stats`).
+		WithArgs(start, end, groupID, "openai").
+		WillReturnRows(sqlmock.NewRows([]string{"count"}).AddRow(int64(3)))
+
+	rows := sqlmock.NewRows([]string{
+		"model",
+		"request_count",
+		"avg_tokens_per_sec",
+		"avg_first_token_ms",
+		"total_output_tokens",
+		"avg_duration_ms",
+		"requests_with_first_token",
+	}).
+		AddRow("gpt-4o-mini", int64(20), 21.56, 120.34, int64(3000), int64(850), int64(18)).
+		AddRow("gpt-4.1", int64(20), 10.2, 240.0, int64(2500), int64(900), int64(20))
+
+	mock.ExpectQuery(`ORDER BY request_count DESC, model ASC\s+LIMIT \$5 OFFSET \$6`).
+		WithArgs(start, end, groupID, "openai", 10, 10).
+		WillReturnRows(rows)
+
+	resp, err := repo.GetOpenAITokenStats(context.Background(), filter)
+	require.NoError(t, err)
+	require.NotNil(t, resp)
+	require.Equal(t, int64(3), resp.Total)
+	require.Equal(t, 2, resp.Page)
+	require.Equal(t, 10, resp.PageSize)
+	require.Nil(t, resp.TopN)
+	require.Equal(t, "openai", resp.Platform)
+	require.NotNil(t, resp.GroupID)
+	require.Equal(t, groupID, *resp.GroupID)
+	require.Len(t, resp.Items, 2)
+	require.Equal(t, "gpt-4o-mini", resp.Items[0].Model)
+	require.NotNil(t, resp.Items[0].AvgTokensPerSec)
+	require.InDelta(t, 21.56, *resp.Items[0].AvgTokensPerSec, 0.0001)
+	require.NotNil(t, resp.Items[0].AvgFirstTokenMs)
+	require.InDelta(t, 120.34, *resp.Items[0].AvgFirstTokenMs, 0.0001)
+
+	require.NoError(t, mock.ExpectationsWereMet())
+}
+
+func TestOpsRepositoryGetOpenAITokenStats_TopNMode(t *testing.T) {
+	db, mock := newSQLMock(t)
+	repo := &opsRepository{db: db}
+
+	start := time.Date(2026, 1, 1, 10, 0, 0, 0, time.UTC)
+	end := start.Add(time.Hour)
+	filter := &service.OpsOpenAITokenStatsFilter{
+		TimeRange: "1h",
+		StartTime: start,
+		EndTime:   end,
+		TopN:      5,
+	}
+
+	mock.ExpectQuery(`SELECT COUNT\(\*\) FROM stats`).
+		WithArgs(start, end).
+		WillReturnRows(sqlmock.NewRows([]string{"count"}).AddRow(int64(1)))
+
+	rows := sqlmock.NewRows([]string{
+		"model",
+		"request_count",
+		"avg_tokens_per_sec",
+		"avg_first_token_ms",
+		"total_output_tokens",
+		"avg_duration_ms",
+		"requests_with_first_token",
+	}).
+		AddRow("gpt-4o", int64(5), nil, nil, int64(0), int64(0), int64(0))
+
+	mock.ExpectQuery(`ORDER BY request_count DESC, model ASC\s+LIMIT \$3`).
+		WithArgs(start, end, 5).
+		WillReturnRows(rows)
+
+	resp, err := repo.GetOpenAITokenStats(context.Background(), filter)
+	require.NoError(t, err)
+	require.NotNil(t, resp)
+	require.NotNil(t, resp.TopN)
+	require.Equal(t, 5, *resp.TopN)
+	require.Equal(t, 0, resp.Page)
+	require.Equal(t, 0, resp.PageSize)
+	require.Len(t, resp.Items, 1)
+	require.Nil(t, resp.Items[0].AvgTokensPerSec)
+	require.Nil(t, resp.Items[0].AvgFirstTokenMs)
+
+	require.NoError(t, mock.ExpectationsWereMet())
+}
+
+func TestOpsRepositoryGetOpenAITokenStats_EmptyResult(t *testing.T) {
+	db, mock := newSQLMock(t)
+	repo := &opsRepository{db: db}
+
+	start := time.Date(2026, 1, 2, 0, 0, 0, 0, time.UTC)
+	end := start.Add(30 * time.Minute)
+	filter := &service.OpsOpenAITokenStatsFilter{
+		TimeRange: "30m",
+		StartTime: start,
+		EndTime:   end,
+		Page:      1,
+		PageSize:  20,
+	}
+
+	mock.ExpectQuery(`SELECT COUNT\(\*\) FROM stats`).
+		WithArgs(start, end).
+		WillReturnRows(sqlmock.NewRows([]string{"count"}).AddRow(int64(0)))
+
+	mock.ExpectQuery(`ORDER BY request_count DESC, model ASC\s+LIMIT \$3 OFFSET \$4`).
+		WithArgs(start, end, 20, 0).
+		WillReturnRows(sqlmock.NewRows([]string{
+			"model",
+			"request_count",
+			"avg_tokens_per_sec",
+			"avg_first_token_ms",
+			"total_output_tokens",
+			"avg_duration_ms",
+			"requests_with_first_token",
+		}))
+
+	resp, err := repo.GetOpenAITokenStats(context.Background(), filter)
+	require.NoError(t, err)
+	require.NotNil(t, resp)
+	require.Equal(t, int64(0), resp.Total)
+	require.Len(t, resp.Items, 0)
+	require.Equal(t, 1, resp.Page)
+	require.Equal(t, 20, resp.PageSize)
+
+	require.NoError(t, mock.ExpectationsWereMet())
+}

llm-gateway-competitors/sub2api-tar/backend/internal/repository/ops_repo_preagg.go

@@ -0,0 +1,363 @@
+package repository
+
+import (
+	"context"
+	"database/sql"
+	"fmt"
+	"time"
+)
+
+func (r *opsRepository) UpsertHourlyMetrics(ctx context.Context, startTime, endTime time.Time) error {
+	if r == nil || r.db == nil {
+		return fmt.Errorf("nil ops repository")
+	}
+	if startTime.IsZero() || endTime.IsZero() || !endTime.After(startTime) {
+		return nil
+	}
+
+	start := startTime.UTC()
+	end := endTime.UTC()
+
+	// NOTE:
+	// - We aggregate usage_logs + ops_error_logs into ops_metrics_hourly.
+	// - We emit three dimension granularities via GROUPING SETS:
+	//   1) overall: (bucket_start)
+	//   2) platform: (bucket_start, platform)
+	//   3) group: (bucket_start, platform, group_id)
+	//
+	// IMPORTANT: Postgres UNIQUE treats NULLs as distinct, so the table uses a COALESCE-based
+	// unique index; our ON CONFLICT target must match that expression set.
+	q := `
+WITH usage_base AS (
+  SELECT
+    date_trunc('hour', ul.created_at AT TIME ZONE 'UTC') AT TIME ZONE 'UTC' AS bucket_start,
+    g.platform AS platform,
+    ul.group_id AS group_id,
+    ul.duration_ms AS duration_ms,
+    ul.first_token_ms AS first_token_ms,
+    (ul.input_tokens + ul.output_tokens + ul.cache_creation_tokens + ul.cache_read_tokens) AS tokens
+  FROM usage_logs ul
+  JOIN groups g ON g.id = ul.group_id
+  WHERE ul.created_at >= $1 AND ul.created_at < $2
+),
+usage_agg AS (
+  SELECT
+    bucket_start,
+    CASE WHEN GROUPING(platform) = 1 THEN NULL ELSE platform END AS platform,
+    CASE WHEN GROUPING(group_id) = 1 THEN NULL ELSE group_id END AS group_id,
+    COUNT(*) AS success_count,
+    COALESCE(SUM(tokens), 0) AS token_consumed,
+
+    percentile_cont(0.50) WITHIN GROUP (ORDER BY duration_ms) FILTER (WHERE duration_ms IS NOT NULL) AS duration_p50_ms,
+    percentile_cont(0.90) WITHIN GROUP (ORDER BY duration_ms) FILTER (WHERE duration_ms IS NOT NULL) AS duration_p90_ms,
+    percentile_cont(0.95) WITHIN GROUP (ORDER BY duration_ms) FILTER (WHERE duration_ms IS NOT NULL) AS duration_p95_ms,
+    percentile_cont(0.99) WITHIN GROUP (ORDER BY duration_ms) FILTER (WHERE duration_ms IS NOT NULL) AS duration_p99_ms,
+    AVG(duration_ms) FILTER (WHERE duration_ms IS NOT NULL) AS duration_avg_ms,
+    MAX(duration_ms) AS duration_max_ms,
+
+    percentile_cont(0.50) WITHIN GROUP (ORDER BY first_token_ms) FILTER (WHERE first_token_ms IS NOT NULL) AS ttft_p50_ms,
+    percentile_cont(0.90) WITHIN GROUP (ORDER BY first_token_ms) FILTER (WHERE first_token_ms IS NOT NULL) AS ttft_p90_ms,
+    percentile_cont(0.95) WITHIN GROUP (ORDER BY first_token_ms) FILTER (WHERE first_token_ms IS NOT NULL) AS ttft_p95_ms,
+    percentile_cont(0.99) WITHIN GROUP (ORDER BY first_token_ms) FILTER (WHERE first_token_ms IS NOT NULL) AS ttft_p99_ms,
+    AVG(first_token_ms) FILTER (WHERE first_token_ms IS NOT NULL) AS ttft_avg_ms,
+    MAX(first_token_ms) AS ttft_max_ms
+  FROM usage_base
+  GROUP BY GROUPING SETS (
+    (bucket_start),
+    (bucket_start, platform),
+    (bucket_start, platform, group_id)
+  )
+),
+error_base AS (
+  SELECT
+    date_trunc('hour', created_at AT TIME ZONE 'UTC') AT TIME ZONE 'UTC' AS bucket_start,
+    -- platform is NULL for some early-phase errors (e.g. before routing); map to a sentinel
+    -- value so platform-level GROUPING SETS don't collide with the overall (platform=NULL) row.
+    COALESCE(platform, 'unknown') AS platform,
+    group_id AS group_id,
+    is_business_limited AS is_business_limited,
+    error_owner AS error_owner,
+    status_code AS client_status_code,
+    COALESCE(upstream_status_code, status_code, 0) AS effective_status_code
+  FROM ops_error_logs
+  -- Exclude count_tokens requests from error metrics as they are informational probes
+  WHERE created_at >= $1 AND created_at < $2
+    AND is_count_tokens = FALSE
+),
+error_agg AS (
+  SELECT
+    bucket_start,
+    CASE WHEN GROUPING(platform) = 1 THEN NULL ELSE platform END AS platform,
+    CASE WHEN GROUPING(group_id) = 1 THEN NULL ELSE group_id END AS group_id,
+    COUNT(*) FILTER (WHERE COALESCE(client_status_code, 0) >= 400) AS error_count_total,
+    COUNT(*) FILTER (WHERE COALESCE(client_status_code, 0) >= 400 AND is_business_limited) AS business_limited_count,
+    COUNT(*) FILTER (WHERE COALESCE(client_status_code, 0) >= 400 AND NOT is_business_limited) AS error_count_sla,
+    COUNT(*) FILTER (WHERE error_owner = 'provider' AND NOT is_business_limited AND COALESCE(effective_status_code, 0) NOT IN (429, 529)) AS upstream_error_count_excl_429_529,
+    COUNT(*) FILTER (WHERE error_owner = 'provider' AND NOT is_business_limited AND COALESCE(effective_status_code, 0) = 429) AS upstream_429_count,
+    COUNT(*) FILTER (WHERE error_owner = 'provider' AND NOT is_business_limited AND COALESCE(effective_status_code, 0) = 529) AS upstream_529_count
+  FROM error_base
+  GROUP BY GROUPING SETS (
+    (bucket_start),
+    (bucket_start, platform),
+    (bucket_start, platform, group_id)
+  )
+  HAVING GROUPING(group_id) = 1 OR group_id IS NOT NULL
+),
+combined AS (
+  SELECT
+    COALESCE(u.bucket_start, e.bucket_start) AS bucket_start,
+    COALESCE(u.platform, e.platform) AS platform,
+    COALESCE(u.group_id, e.group_id) AS group_id,
+
+    COALESCE(u.success_count, 0) AS success_count,
+    COALESCE(e.error_count_total, 0) AS error_count_total,
+    COALESCE(e.business_limited_count, 0) AS business_limited_count,
+    COALESCE(e.error_count_sla, 0) AS error_count_sla,
+    COALESCE(e.upstream_error_count_excl_429_529, 0) AS upstream_error_count_excl_429_529,
+    COALESCE(e.upstream_429_count, 0) AS upstream_429_count,
+    COALESCE(e.upstream_529_count, 0) AS upstream_529_count,
+
+    COALESCE(u.token_consumed, 0) AS token_consumed,
+
+    u.duration_p50_ms,
+    u.duration_p90_ms,
+    u.duration_p95_ms,
+    u.duration_p99_ms,
+    u.duration_avg_ms,
+    u.duration_max_ms,
+
+    u.ttft_p50_ms,
+    u.ttft_p90_ms,
+    u.ttft_p95_ms,
+    u.ttft_p99_ms,
+    u.ttft_avg_ms,
+    u.ttft_max_ms
+  FROM usage_agg u
+  FULL OUTER JOIN error_agg e
+    ON u.bucket_start = e.bucket_start
+   AND COALESCE(u.platform, '') = COALESCE(e.platform, '')
+   AND COALESCE(u.group_id, 0) = COALESCE(e.group_id, 0)
+)
+INSERT INTO ops_metrics_hourly (
+  bucket_start,
+  platform,
+  group_id,
+  success_count,
+  error_count_total,
+  business_limited_count,
+  error_count_sla,
+  upstream_error_count_excl_429_529,
+  upstream_429_count,
+  upstream_529_count,
+  token_consumed,
+  duration_p50_ms,
+  duration_p90_ms,
+  duration_p95_ms,
+  duration_p99_ms,
+  duration_avg_ms,
+  duration_max_ms,
+  ttft_p50_ms,
+  ttft_p90_ms,
+  ttft_p95_ms,
+  ttft_p99_ms,
+  ttft_avg_ms,
+  ttft_max_ms,
+  computed_at
+)
+SELECT
+  bucket_start,
+  NULLIF(platform, '') AS platform,
+  group_id,
+  success_count,
+  error_count_total,
+  business_limited_count,
+  error_count_sla,
+  upstream_error_count_excl_429_529,
+  upstream_429_count,
+  upstream_529_count,
+  token_consumed,
+  duration_p50_ms::int,
+  duration_p90_ms::int,
+  duration_p95_ms::int,
+  duration_p99_ms::int,
+  duration_avg_ms,
+  duration_max_ms::int,
+  ttft_p50_ms::int,
+  ttft_p90_ms::int,
+  ttft_p95_ms::int,
+  ttft_p99_ms::int,
+  ttft_avg_ms,
+  ttft_max_ms::int,
+  NOW()
+FROM combined
+WHERE bucket_start IS NOT NULL
+  AND (platform IS NULL OR platform <> '')
+ON CONFLICT (bucket_start, COALESCE(platform, ''), COALESCE(group_id, 0)) DO UPDATE SET
+  success_count = EXCLUDED.success_count,
+  error_count_total = EXCLUDED.error_count_total,
+  business_limited_count = EXCLUDED.business_limited_count,
+  error_count_sla = EXCLUDED.error_count_sla,
+  upstream_error_count_excl_429_529 = EXCLUDED.upstream_error_count_excl_429_529,
+  upstream_429_count = EXCLUDED.upstream_429_count,
+  upstream_529_count = EXCLUDED.upstream_529_count,
+  token_consumed = EXCLUDED.token_consumed,
+
+  duration_p50_ms = EXCLUDED.duration_p50_ms,
+  duration_p90_ms = EXCLUDED.duration_p90_ms,
+  duration_p95_ms = EXCLUDED.duration_p95_ms,
+  duration_p99_ms = EXCLUDED.duration_p99_ms,
+  duration_avg_ms = EXCLUDED.duration_avg_ms,
+  duration_max_ms = EXCLUDED.duration_max_ms,
+
+  ttft_p50_ms = EXCLUDED.ttft_p50_ms,
+  ttft_p90_ms = EXCLUDED.ttft_p90_ms,
+  ttft_p95_ms = EXCLUDED.ttft_p95_ms,
+  ttft_p99_ms = EXCLUDED.ttft_p99_ms,
+  ttft_avg_ms = EXCLUDED.ttft_avg_ms,
+  ttft_max_ms = EXCLUDED.ttft_max_ms,
+
+  computed_at = NOW()
+`
+
+	_, err := r.db.ExecContext(ctx, q, start, end)
+	return err
+}
+
+func (r *opsRepository) UpsertDailyMetrics(ctx context.Context, startTime, endTime time.Time) error {
+	if r == nil || r.db == nil {
+		return fmt.Errorf("nil ops repository")
+	}
+	if startTime.IsZero() || endTime.IsZero() || !endTime.After(startTime) {
+		return nil
+	}
+
+	start := startTime.UTC()
+	end := endTime.UTC()
+
+	q := `
+INSERT INTO ops_metrics_daily (
+  bucket_date,
+  platform,
+  group_id,
+  success_count,
+  error_count_total,
+  business_limited_count,
+  error_count_sla,
+  upstream_error_count_excl_429_529,
+  upstream_429_count,
+  upstream_529_count,
+  token_consumed,
+  duration_p50_ms,
+  duration_p90_ms,
+  duration_p95_ms,
+  duration_p99_ms,
+  duration_avg_ms,
+  duration_max_ms,
+  ttft_p50_ms,
+  ttft_p90_ms,
+  ttft_p95_ms,
+  ttft_p99_ms,
+  ttft_avg_ms,
+  ttft_max_ms,
+  computed_at
+)
+SELECT
+  (bucket_start AT TIME ZONE 'UTC')::date AS bucket_date,
+  platform,
+  group_id,
+
+  COALESCE(SUM(success_count), 0) AS success_count,
+  COALESCE(SUM(error_count_total), 0) AS error_count_total,
+  COALESCE(SUM(business_limited_count), 0) AS business_limited_count,
+  COALESCE(SUM(error_count_sla), 0) AS error_count_sla,
+  COALESCE(SUM(upstream_error_count_excl_429_529), 0) AS upstream_error_count_excl_429_529,
+  COALESCE(SUM(upstream_429_count), 0) AS upstream_429_count,
+  COALESCE(SUM(upstream_529_count), 0) AS upstream_529_count,
+  COALESCE(SUM(token_consumed), 0) AS token_consumed,
+
+  -- Approximation: weighted average for p50/p90, max for p95/p99 (conservative tail).
+  ROUND(SUM(duration_p50_ms::double precision * success_count) FILTER (WHERE duration_p50_ms IS NOT NULL)
+    / NULLIF(SUM(success_count) FILTER (WHERE duration_p50_ms IS NOT NULL), 0))::int AS duration_p50_ms,
+  ROUND(SUM(duration_p90_ms::double precision * success_count) FILTER (WHERE duration_p90_ms IS NOT NULL)
+    / NULLIF(SUM(success_count) FILTER (WHERE duration_p90_ms IS NOT NULL), 0))::int AS duration_p90_ms,
+  MAX(duration_p95_ms) AS duration_p95_ms,
+  MAX(duration_p99_ms) AS duration_p99_ms,
+  SUM(duration_avg_ms * success_count) FILTER (WHERE duration_avg_ms IS NOT NULL)
+    / NULLIF(SUM(success_count) FILTER (WHERE duration_avg_ms IS NOT NULL), 0) AS duration_avg_ms,
+  MAX(duration_max_ms) AS duration_max_ms,
+
+  ROUND(SUM(ttft_p50_ms::double precision * success_count) FILTER (WHERE ttft_p50_ms IS NOT NULL)
+    / NULLIF(SUM(success_count) FILTER (WHERE ttft_p50_ms IS NOT NULL), 0))::int AS ttft_p50_ms,
+  ROUND(SUM(ttft_p90_ms::double precision * success_count) FILTER (WHERE ttft_p90_ms IS NOT NULL)
+    / NULLIF(SUM(success_count) FILTER (WHERE ttft_p90_ms IS NOT NULL), 0))::int AS ttft_p90_ms,
+  MAX(ttft_p95_ms) AS ttft_p95_ms,
+  MAX(ttft_p99_ms) AS ttft_p99_ms,
+  SUM(ttft_avg_ms * success_count) FILTER (WHERE ttft_avg_ms IS NOT NULL)
+    / NULLIF(SUM(success_count) FILTER (WHERE ttft_avg_ms IS NOT NULL), 0) AS ttft_avg_ms,
+  MAX(ttft_max_ms) AS ttft_max_ms,
+
+  NOW()
+FROM ops_metrics_hourly
+WHERE bucket_start >= $1 AND bucket_start < $2
+GROUP BY 1, 2, 3
+ON CONFLICT (bucket_date, COALESCE(platform, ''), COALESCE(group_id, 0)) DO UPDATE SET
+  success_count = EXCLUDED.success_count,
+  error_count_total = EXCLUDED.error_count_total,
+  business_limited_count = EXCLUDED.business_limited_count,
+  error_count_sla = EXCLUDED.error_count_sla,
+  upstream_error_count_excl_429_529 = EXCLUDED.upstream_error_count_excl_429_529,
+  upstream_429_count = EXCLUDED.upstream_429_count,
+  upstream_529_count = EXCLUDED.upstream_529_count,
+  token_consumed = EXCLUDED.token_consumed,
+
+  duration_p50_ms = EXCLUDED.duration_p50_ms,
+  duration_p90_ms = EXCLUDED.duration_p90_ms,
+  duration_p95_ms = EXCLUDED.duration_p95_ms,
+  duration_p99_ms = EXCLUDED.duration_p99_ms,
+  duration_avg_ms = EXCLUDED.duration_avg_ms,
+  duration_max_ms = EXCLUDED.duration_max_ms,
+
+  ttft_p50_ms = EXCLUDED.ttft_p50_ms,
+  ttft_p90_ms = EXCLUDED.ttft_p90_ms,
+  ttft_p95_ms = EXCLUDED.ttft_p95_ms,
+  ttft_p99_ms = EXCLUDED.ttft_p99_ms,
+  ttft_avg_ms = EXCLUDED.ttft_avg_ms,
+  ttft_max_ms = EXCLUDED.ttft_max_ms,
+
+  computed_at = NOW()
+`
+
+	_, err := r.db.ExecContext(ctx, q, start, end)
+	return err
+}
+
+func (r *opsRepository) GetLatestHourlyBucketStart(ctx context.Context) (time.Time, bool, error) {
+	if r == nil || r.db == nil {
+		return time.Time{}, false, fmt.Errorf("nil ops repository")
+	}
+
+	var value sql.NullTime
+	if err := r.db.QueryRowContext(ctx, `SELECT MAX(bucket_start) FROM ops_metrics_hourly`).Scan(&value); err != nil {
+		return time.Time{}, false, err
+	}
+	if !value.Valid {
+		return time.Time{}, false, nil
+	}
+	return value.Time.UTC(), true, nil
+}
+
+func (r *opsRepository) GetLatestDailyBucketDate(ctx context.Context) (time.Time, bool, error) {
+	if r == nil || r.db == nil {
+		return time.Time{}, false, fmt.Errorf("nil ops repository")
+	}
+
+	var value sql.NullTime
+	if err := r.db.QueryRowContext(ctx, `SELECT MAX(bucket_date) FROM ops_metrics_daily`).Scan(&value); err != nil {
+		return time.Time{}, false, err
+	}
+	if !value.Valid {
+		return time.Time{}, false, nil
+	}
+	t := value.Time.UTC()
+	return time.Date(t.Year(), t.Month(), t.Day(), 0, 0, 0, 0, time.UTC), true, nil
+}

llm-gateway-competitors/sub2api-tar/backend/internal/repository/ops_repo_realtime_traffic.go

@@ -0,0 +1,129 @@
+package repository
+
+import (
+	"context"
+	"fmt"
+	"strings"
+	"time"
+
+	"github.com/Wei-Shaw/sub2api/internal/service"
+)
+
+func (r *opsRepository) GetRealtimeTrafficSummary(ctx context.Context, filter *service.OpsDashboardFilter) (*service.OpsRealtimeTrafficSummary, error) {
+	if r == nil || r.db == nil {
+		return nil, fmt.Errorf("nil ops repository")
+	}
+	if filter == nil {
+		return nil, fmt.Errorf("nil filter")
+	}
+	if filter.StartTime.IsZero() || filter.EndTime.IsZero() {
+		return nil, fmt.Errorf("start_time/end_time required")
+	}
+
+	start := filter.StartTime.UTC()
+	end := filter.EndTime.UTC()
+	if start.After(end) {
+		return nil, fmt.Errorf("start_time must be <= end_time")
+	}
+
+	window := end.Sub(start)
+	if window <= 0 {
+		return nil, fmt.Errorf("invalid time window")
+	}
+	if window > time.Hour {
+		return nil, fmt.Errorf("window too large")
+	}
+
+	usageJoin, usageWhere, usageArgs, next := buildUsageWhere(filter, start, end, 1)
+	errorWhere, errorArgs, _ := buildErrorWhere(filter, start, end, next)
+
+	q := `
+WITH usage_buckets AS (
+  SELECT
+    date_trunc('minute', ul.created_at) AS bucket,
+    COALESCE(COUNT(*), 0) AS success_count,
+    COALESCE(SUM(input_tokens + output_tokens + cache_creation_tokens + cache_read_tokens), 0) AS token_sum
+  FROM usage_logs ul
+  ` + usageJoin + `
+  ` + usageWhere + `
+  GROUP BY 1
+),
+error_buckets AS (
+  SELECT
+    date_trunc('minute', created_at) AS bucket,
+    COALESCE(COUNT(*), 0) AS error_count
+  FROM ops_error_logs
+  ` + errorWhere + `
+    AND COALESCE(status_code, 0) >= 400
+  GROUP BY 1
+),
+combined AS (
+  SELECT
+    COALESCE(u.bucket, e.bucket) AS bucket,
+    COALESCE(u.success_count, 0) AS success_count,
+    COALESCE(u.token_sum, 0) AS token_sum,
+    COALESCE(e.error_count, 0) AS error_count,
+    COALESCE(u.success_count, 0) + COALESCE(e.error_count, 0) AS request_total
+  FROM usage_buckets u
+  FULL OUTER JOIN error_buckets e ON u.bucket = e.bucket
+)
+SELECT
+  COALESCE(SUM(success_count), 0) AS success_total,
+  COALESCE(SUM(error_count), 0) AS error_total,
+  COALESCE(SUM(token_sum), 0) AS token_total,
+  COALESCE(MAX(request_total), 0) AS peak_requests_per_min,
+  COALESCE(MAX(token_sum), 0) AS peak_tokens_per_min
+FROM combined`
+
+	args := append(usageArgs, errorArgs...)
+	var successCount int64
+	var errorTotal int64
+	var tokenConsumed int64
+	var peakRequestsPerMin int64
+	var peakTokensPerMin int64
+	if err := r.db.QueryRowContext(ctx, q, args...).Scan(
+		&successCount,
+		&errorTotal,
+		&tokenConsumed,
+		&peakRequestsPerMin,
+		&peakTokensPerMin,
+	); err != nil {
+		return nil, err
+	}
+
+	windowSeconds := window.Seconds()
+	if windowSeconds <= 0 {
+		windowSeconds = 1
+	}
+
+	requestCountTotal := successCount + errorTotal
+	qpsAvg := roundTo1DP(float64(requestCountTotal) / windowSeconds)
+	tpsAvg := roundTo1DP(float64(tokenConsumed) / windowSeconds)
+
+	// Keep "current" consistent with the dashboard overview semantics: last 1 minute.
+	// This remains "within the selected window" since end=start+window.
+	qpsCurrent, tpsCurrent, err := r.queryCurrentRates(ctx, filter, end)
+	if err != nil {
+		return nil, err
+	}
+
+	qpsPeak := roundTo1DP(float64(peakRequestsPerMin) / 60.0)
+	tpsPeak := roundTo1DP(float64(peakTokensPerMin) / 60.0)
+
+	return &service.OpsRealtimeTrafficSummary{
+		StartTime: start,
+		EndTime:   end,
+		Platform:  strings.TrimSpace(filter.Platform),
+		GroupID:   filter.GroupID,
+		QPS: service.OpsRateSummary{
+			Current: qpsCurrent,
+			Peak:    qpsPeak,
+			Avg:     qpsAvg,
+		},
+		TPS: service.OpsRateSummary{
+			Current: tpsCurrent,
+			Peak:    tpsPeak,
+			Avg:     tpsAvg,
+		},
+	}, nil
+}

llm-gateway-competitors/sub2api-tar/backend/internal/repository/ops_repo_request_details.go

@@ -0,0 +1,286 @@
+package repository
+
+import (
+	"context"
+	"database/sql"
+	"fmt"
+	"strings"
+	"time"
+
+	"github.com/Wei-Shaw/sub2api/internal/service"
+)
+
+func (r *opsRepository) ListRequestDetails(ctx context.Context, filter *service.OpsRequestDetailFilter) ([]*service.OpsRequestDetail, int64, error) {
+	if r == nil || r.db == nil {
+		return nil, 0, fmt.Errorf("nil ops repository")
+	}
+
+	page, pageSize, startTime, endTime := filter.Normalize()
+	offset := (page - 1) * pageSize
+
+	conditions := make([]string, 0, 16)
+	args := make([]any, 0, 24)
+
+	// Placeholders $1/$2 reserved for time window inside the CTE.
+	args = append(args, startTime.UTC(), endTime.UTC())
+
+	addCondition := func(condition string, values ...any) {
+		conditions = append(conditions, condition)
+		args = append(args, values...)
+	}
+
+	if filter != nil {
+		if kind := strings.TrimSpace(strings.ToLower(filter.Kind)); kind != "" && kind != "all" {
+			if kind != string(service.OpsRequestKindSuccess) && kind != string(service.OpsRequestKindError) {
+				return nil, 0, fmt.Errorf("invalid kind")
+			}
+			addCondition(fmt.Sprintf("kind = $%d", len(args)+1), kind)
+		}
+
+		if platform := strings.TrimSpace(strings.ToLower(filter.Platform)); platform != "" {
+			addCondition(fmt.Sprintf("platform = $%d", len(args)+1), platform)
+		}
+		if filter.GroupID != nil && *filter.GroupID > 0 {
+			addCondition(fmt.Sprintf("group_id = $%d", len(args)+1), *filter.GroupID)
+		}
+
+		if filter.UserID != nil && *filter.UserID > 0 {
+			addCondition(fmt.Sprintf("user_id = $%d", len(args)+1), *filter.UserID)
+		}
+		if filter.APIKeyID != nil && *filter.APIKeyID > 0 {
+			addCondition(fmt.Sprintf("api_key_id = $%d", len(args)+1), *filter.APIKeyID)
+		}
+		if filter.AccountID != nil && *filter.AccountID > 0 {
+			addCondition(fmt.Sprintf("account_id = $%d", len(args)+1), *filter.AccountID)
+		}
+
+		if model := strings.TrimSpace(filter.Model); model != "" {
+			addCondition(fmt.Sprintf("model = $%d", len(args)+1), model)
+		}
+		if requestID := strings.TrimSpace(filter.RequestID); requestID != "" {
+			addCondition(fmt.Sprintf("request_id = $%d", len(args)+1), requestID)
+		}
+		if q := strings.TrimSpace(filter.Query); q != "" {
+			like := "%" + strings.ToLower(q) + "%"
+			startIdx := len(args) + 1
+			addCondition(
+				fmt.Sprintf("(LOWER(COALESCE(request_id,'')) LIKE $%d OR LOWER(COALESCE(model,'')) LIKE $%d OR LOWER(COALESCE(message,'')) LIKE $%d)",
+					startIdx, startIdx+1, startIdx+2,
+				),
+				like, like, like,
+			)
+		}
+
+		if filter.MinDurationMs != nil {
+			addCondition(fmt.Sprintf("duration_ms >= $%d", len(args)+1), *filter.MinDurationMs)
+		}
+		if filter.MaxDurationMs != nil {
+			addCondition(fmt.Sprintf("duration_ms <= $%d", len(args)+1), *filter.MaxDurationMs)
+		}
+	}
+
+	where := ""
+	if len(conditions) > 0 {
+		where = "WHERE " + strings.Join(conditions, " AND ")
+	}
+
+	cte := `
+WITH combined AS (
+  SELECT
+    'success'::TEXT AS kind,
+    ul.created_at AS created_at,
+    ul.request_id AS request_id,
+    COALESCE(NULLIF(g.platform, ''), NULLIF(a.platform, ''), '') AS platform,
+    ul.model AS model,
+    ul.duration_ms AS duration_ms,
+    NULL::INT AS status_code,
+    NULL::BIGINT AS error_id,
+    NULL::TEXT AS phase,
+    NULL::TEXT AS severity,
+    NULL::TEXT AS message,
+    ul.user_id AS user_id,
+    ul.api_key_id AS api_key_id,
+    ul.account_id AS account_id,
+    ul.group_id AS group_id,
+    ul.stream AS stream
+  FROM usage_logs ul
+  LEFT JOIN groups g ON g.id = ul.group_id
+  LEFT JOIN accounts a ON a.id = ul.account_id
+  WHERE ul.created_at >= $1 AND ul.created_at < $2
+
+  UNION ALL
+
+  SELECT
+    'error'::TEXT AS kind,
+    o.created_at AS created_at,
+    COALESCE(NULLIF(o.request_id,''), NULLIF(o.client_request_id,''), '') AS request_id,
+    COALESCE(NULLIF(o.platform, ''), NULLIF(g.platform, ''), NULLIF(a.platform, ''), '') AS platform,
+    o.model AS model,
+    o.duration_ms AS duration_ms,
+    o.status_code AS status_code,
+    o.id AS error_id,
+    o.error_phase AS phase,
+    o.severity AS severity,
+    o.error_message AS message,
+    o.user_id AS user_id,
+    o.api_key_id AS api_key_id,
+    o.account_id AS account_id,
+    o.group_id AS group_id,
+    o.stream AS stream
+  FROM ops_error_logs o
+  LEFT JOIN groups g ON g.id = o.group_id
+  LEFT JOIN accounts a ON a.id = o.account_id
+  WHERE o.created_at >= $1 AND o.created_at < $2
+    AND COALESCE(o.status_code, 0) >= 400
+)
+`
+
+	countQuery := fmt.Sprintf(`%s SELECT COUNT(1) FROM combined %s`, cte, where)
+	var total int64
+	if err := r.db.QueryRowContext(ctx, countQuery, args...).Scan(&total); err != nil {
+		if err == sql.ErrNoRows {
+			total = 0
+		} else {
+			return nil, 0, err
+		}
+	}
+
+	sort := "ORDER BY created_at DESC"
+	if filter != nil {
+		switch strings.TrimSpace(strings.ToLower(filter.Sort)) {
+		case "", "created_at_desc":
+			// default
+		case "duration_desc":
+			sort = "ORDER BY duration_ms DESC NULLS LAST, created_at DESC"
+		default:
+			return nil, 0, fmt.Errorf("invalid sort")
+		}
+	}
+
+	listQuery := fmt.Sprintf(`
+%s
+SELECT
+  kind,
+  created_at,
+  request_id,
+  platform,
+  model,
+  duration_ms,
+  status_code,
+  error_id,
+  phase,
+  severity,
+  message,
+  user_id,
+  api_key_id,
+  account_id,
+  group_id,
+  stream
+FROM combined
+%s
+%s
+LIMIT $%d OFFSET $%d
+`, cte, where, sort, len(args)+1, len(args)+2)
+
+	listArgs := append(append([]any{}, args...), pageSize, offset)
+	rows, err := r.db.QueryContext(ctx, listQuery, listArgs...)
+	if err != nil {
+		return nil, 0, err
+	}
+	defer func() { _ = rows.Close() }()
+
+	toIntPtr := func(v sql.NullInt64) *int {
+		if !v.Valid {
+			return nil
+		}
+		i := int(v.Int64)
+		return &i
+	}
+	toInt64Ptr := func(v sql.NullInt64) *int64 {
+		if !v.Valid {
+			return nil
+		}
+		i := v.Int64
+		return &i
+	}
+
+	out := make([]*service.OpsRequestDetail, 0, pageSize)
+	for rows.Next() {
+		var (
+			kind      string
+			createdAt time.Time
+			requestID sql.NullString
+			platform  sql.NullString
+			model     sql.NullString
+
+			durationMs sql.NullInt64
+			statusCode sql.NullInt64
+			errorID    sql.NullInt64
+
+			phase    sql.NullString
+			severity sql.NullString
+			message  sql.NullString
+
+			userID    sql.NullInt64
+			apiKeyID  sql.NullInt64
+			accountID sql.NullInt64
+			groupID   sql.NullInt64
+
+			stream bool
+		)
+
+		if err := rows.Scan(
+			&kind,
+			&createdAt,
+			&requestID,
+			&platform,
+			&model,
+			&durationMs,
+			&statusCode,
+			&errorID,
+			&phase,
+			&severity,
+			&message,
+			&userID,
+			&apiKeyID,
+			&accountID,
+			&groupID,
+			&stream,
+		); err != nil {
+			return nil, 0, err
+		}
+
+		item := &service.OpsRequestDetail{
+			Kind:      service.OpsRequestKind(kind),
+			CreatedAt: createdAt,
+			RequestID: strings.TrimSpace(requestID.String),
+			Platform:  strings.TrimSpace(platform.String),
+			Model:     strings.TrimSpace(model.String),
+
+			DurationMs: toIntPtr(durationMs),
+			StatusCode: toIntPtr(statusCode),
+			ErrorID:    toInt64Ptr(errorID),
+			Phase:      phase.String,
+			Severity:   severity.String,
+			Message:    message.String,
+
+			UserID:    toInt64Ptr(userID),
+			APIKeyID:  toInt64Ptr(apiKeyID),
+			AccountID: toInt64Ptr(accountID),
+			GroupID:   toInt64Ptr(groupID),
+
+			Stream: stream,
+		}
+
+		if item.Platform == "" {
+			item.Platform = "unknown"
+		}
+
+		out = append(out, item)
+	}
+	if err := rows.Err(); err != nil {
+		return nil, 0, err
+	}
+
+	return out, total, nil
+}

llm-gateway-competitors/sub2api-tar/backend/internal/repository/ops_repo_system_logs_test.go

@@ -0,0 +1,86 @@
+package repository
+
+import (
+	"strings"
+	"testing"
+	"time"
+
+	"github.com/Wei-Shaw/sub2api/internal/service"
+)
+
+func TestBuildOpsSystemLogsWhere_WithClientRequestIDAndUserID(t *testing.T) {
+	start := time.Date(2026, 2, 1, 0, 0, 0, 0, time.UTC)
+	end := time.Date(2026, 2, 2, 0, 0, 0, 0, time.UTC)
+	userID := int64(12)
+	accountID := int64(34)
+
+	filter := &service.OpsSystemLogFilter{
+		StartTime:       &start,
+		EndTime:         &end,
+		Level:           "warn",
+		Component:       "http.access",
+		RequestID:       "req-1",
+		ClientRequestID: "creq-1",
+		UserID:          &userID,
+		AccountID:       &accountID,
+		Platform:        "openai",
+		Model:           "gpt-5",
+		Query:           "timeout",
+	}
+
+	where, args, hasConstraint := buildOpsSystemLogsWhere(filter)
+	if !hasConstraint {
+		t.Fatalf("expected hasConstraint=true")
+	}
+	if where == "" {
+		t.Fatalf("where should not be empty")
+	}
+	if len(args) != 11 {
+		t.Fatalf("args len = %d, want 11", len(args))
+	}
+	if !contains(where, "COALESCE(l.client_request_id,'') = $") {
+		t.Fatalf("where should include client_request_id condition: %s", where)
+	}
+	if !contains(where, "l.user_id = $") {
+		t.Fatalf("where should include user_id condition: %s", where)
+	}
+}
+
+func TestBuildOpsSystemLogsCleanupWhere_RequireConstraint(t *testing.T) {
+	where, args, hasConstraint := buildOpsSystemLogsCleanupWhere(&service.OpsSystemLogCleanupFilter{})
+	if hasConstraint {
+		t.Fatalf("expected hasConstraint=false")
+	}
+	if where == "" {
+		t.Fatalf("where should not be empty")
+	}
+	if len(args) != 0 {
+		t.Fatalf("args len = %d, want 0", len(args))
+	}
+}
+
+func TestBuildOpsSystemLogsCleanupWhere_WithClientRequestIDAndUserID(t *testing.T) {
+	userID := int64(9)
+	filter := &service.OpsSystemLogCleanupFilter{
+		ClientRequestID: "creq-9",
+		UserID:          &userID,
+	}
+
+	where, args, hasConstraint := buildOpsSystemLogsCleanupWhere(filter)
+	if !hasConstraint {
+		t.Fatalf("expected hasConstraint=true")
+	}
+	if len(args) != 2 {
+		t.Fatalf("args len = %d, want 2", len(args))
+	}
+	if !contains(where, "COALESCE(l.client_request_id,'') = $") {
+		t.Fatalf("where should include client_request_id condition: %s", where)
+	}
+	if !contains(where, "l.user_id = $") {
+		t.Fatalf("where should include user_id condition: %s", where)
+	}
+}
+
+func contains(s string, sub string) bool {
+	return strings.Contains(s, sub)
+}

llm-gateway-competitors/sub2api-tar/backend/internal/repository/ops_repo_trends.go

@@ -0,0 +1,606 @@
+package repository
+
+import (
+	"context"
+	"database/sql"
+	"fmt"
+	"strings"
+	"time"
+
+	"github.com/Wei-Shaw/sub2api/internal/service"
+)
+
+func (r *opsRepository) GetThroughputTrend(ctx context.Context, filter *service.OpsDashboardFilter, bucketSeconds int) (*service.OpsThroughputTrendResponse, error) {
+	if r == nil || r.db == nil {
+		return nil, fmt.Errorf("nil ops repository")
+	}
+	if filter == nil {
+		return nil, fmt.Errorf("nil filter")
+	}
+	if filter.StartTime.IsZero() || filter.EndTime.IsZero() {
+		return nil, fmt.Errorf("start_time/end_time required")
+	}
+
+	if bucketSeconds <= 0 {
+		bucketSeconds = 60
+	}
+	if bucketSeconds != 60 && bucketSeconds != 300 && bucketSeconds != 3600 {
+		// Keep a small, predictable set of supported buckets for now.
+		bucketSeconds = 60
+	}
+
+	start := filter.StartTime.UTC()
+	end := filter.EndTime.UTC()
+
+	usageJoin, usageWhere, usageArgs, next := buildUsageWhere(filter, start, end, 1)
+	errorWhere, errorArgs, _ := buildErrorWhere(filter, start, end, next)
+
+	usageBucketExpr := opsBucketExprForUsage(bucketSeconds)
+	errorBucketExpr := opsBucketExprForError(bucketSeconds)
+
+	q := `
+WITH usage_buckets AS (
+  SELECT ` + usageBucketExpr + ` AS bucket,
+         COUNT(*) AS success_count,
+         COALESCE(SUM(input_tokens + output_tokens + cache_creation_tokens + cache_read_tokens), 0) AS token_consumed
+  FROM usage_logs ul
+  ` + usageJoin + `
+  ` + usageWhere + `
+  GROUP BY 1
+),
+error_buckets AS (
+  SELECT ` + errorBucketExpr + ` AS bucket,
+         COUNT(*) AS error_count
+  FROM ops_error_logs
+  ` + errorWhere + `
+    AND COALESCE(status_code, 0) >= 400
+  GROUP BY 1
+),
+switch_buckets AS (
+  SELECT ` + errorBucketExpr + ` AS bucket,
+         COALESCE(SUM(CASE
+           WHEN split_part(ev->>'kind', ':', 1) IN ('failover', 'retry_exhausted_failover', 'failover_on_400') THEN 1
+           ELSE 0
+         END), 0) AS switch_count
+  FROM ops_error_logs
+  CROSS JOIN LATERAL jsonb_array_elements(
+    COALESCE(NULLIF(upstream_errors, 'null'::jsonb), '[]'::jsonb)
+  ) AS ev
+  ` + errorWhere + `
+    AND upstream_errors IS NOT NULL
+  GROUP BY 1
+),
+combined AS (
+  SELECT
+    bucket,
+    SUM(success_count) AS success_count,
+    SUM(error_count) AS error_count,
+    SUM(token_consumed) AS token_consumed,
+    SUM(switch_count) AS switch_count
+  FROM (
+    SELECT bucket, success_count, 0 AS error_count, token_consumed, 0 AS switch_count
+    FROM usage_buckets
+    UNION ALL
+    SELECT bucket, 0, error_count, 0, 0
+    FROM error_buckets
+    UNION ALL
+    SELECT bucket, 0, 0, 0, switch_count
+    FROM switch_buckets
+  ) t
+  GROUP BY bucket
+)
+SELECT
+  bucket,
+  (success_count + error_count) AS request_count,
+  token_consumed,
+  switch_count
+FROM combined
+ORDER BY bucket ASC`
+
+	args := append(usageArgs, errorArgs...)
+
+	rows, err := r.db.QueryContext(ctx, q, args...)
+	if err != nil {
+		return nil, err
+	}
+	defer func() { _ = rows.Close() }()
+
+	points := make([]*service.OpsThroughputTrendPoint, 0, 256)
+	for rows.Next() {
+		var bucket time.Time
+		var requests int64
+		var tokens sql.NullInt64
+		var switches sql.NullInt64
+		if err := rows.Scan(&bucket, &requests, &tokens, &switches); err != nil {
+			return nil, err
+		}
+		tokenConsumed := int64(0)
+		if tokens.Valid {
+			tokenConsumed = tokens.Int64
+		}
+		switchCount := int64(0)
+		if switches.Valid {
+			switchCount = switches.Int64
+		}
+
+		denom := float64(bucketSeconds)
+		if denom <= 0 {
+			denom = 60
+		}
+		qps := roundTo1DP(float64(requests) / denom)
+		tps := roundTo1DP(float64(tokenConsumed) / denom)
+
+		points = append(points, &service.OpsThroughputTrendPoint{
+			BucketStart:   bucket.UTC(),
+			RequestCount:  requests,
+			TokenConsumed: tokenConsumed,
+			SwitchCount:   switchCount,
+			QPS:           qps,
+			TPS:           tps,
+		})
+	}
+	if err := rows.Err(); err != nil {
+		return nil, err
+	}
+
+	// Fill missing buckets with zeros so charts render continuous timelines.
+	points = fillOpsThroughputBuckets(start, end, bucketSeconds, points)
+
+	var byPlatform []*service.OpsThroughputPlatformBreakdownItem
+	var topGroups []*service.OpsThroughputGroupBreakdownItem
+
+	platform := ""
+	if filter != nil {
+		platform = strings.TrimSpace(strings.ToLower(filter.Platform))
+	}
+	groupID := (*int64)(nil)
+	if filter != nil {
+		groupID = filter.GroupID
+	}
+
+	// Drilldown helpers:
+	// - No platform/group: totals by platform
+	// - Platform selected but no group: top groups in that platform
+	if platform == "" && (groupID == nil || *groupID <= 0) {
+		items, err := r.getThroughputBreakdownByPlatform(ctx, start, end)
+		if err != nil {
+			return nil, err
+		}
+		byPlatform = items
+	} else if platform != "" && (groupID == nil || *groupID <= 0) {
+		items, err := r.getThroughputTopGroupsByPlatform(ctx, start, end, platform, 10)
+		if err != nil {
+			return nil, err
+		}
+		topGroups = items
+	}
+
+	return &service.OpsThroughputTrendResponse{
+		Bucket: opsBucketLabel(bucketSeconds),
+		Points: points,
+
+		ByPlatform: byPlatform,
+		TopGroups:  topGroups,
+	}, nil
+}
+
+func (r *opsRepository) getThroughputBreakdownByPlatform(ctx context.Context, start, end time.Time) ([]*service.OpsThroughputPlatformBreakdownItem, error) {
+	q := `
+WITH usage_totals AS (
+  SELECT COALESCE(NULLIF(g.platform,''), a.platform) AS platform,
+         COUNT(*) AS success_count,
+         COALESCE(SUM(input_tokens + output_tokens + cache_creation_tokens + cache_read_tokens), 0) AS token_consumed
+  FROM usage_logs ul
+  LEFT JOIN groups g ON g.id = ul.group_id
+  LEFT JOIN accounts a ON a.id = ul.account_id
+  WHERE ul.created_at >= $1 AND ul.created_at < $2
+  GROUP BY 1
+),
+error_totals AS (
+  SELECT platform,
+         COUNT(*) AS error_count
+  FROM ops_error_logs
+  WHERE created_at >= $1 AND created_at < $2
+    AND COALESCE(status_code, 0) >= 400
+    AND is_count_tokens = FALSE  -- 排除 count_tokens 请求的错误
+  GROUP BY 1
+),
+combined AS (
+  SELECT COALESCE(u.platform, e.platform) AS platform,
+         COALESCE(u.success_count, 0) AS success_count,
+         COALESCE(e.error_count, 0) AS error_count,
+         COALESCE(u.token_consumed, 0) AS token_consumed
+  FROM usage_totals u
+  FULL OUTER JOIN error_totals e ON u.platform = e.platform
+)
+SELECT platform, (success_count + error_count) AS request_count, token_consumed
+FROM combined
+WHERE platform IS NOT NULL AND platform <> ''
+ORDER BY request_count DESC`
+
+	rows, err := r.db.QueryContext(ctx, q, start, end)
+	if err != nil {
+		return nil, err
+	}
+	defer func() { _ = rows.Close() }()
+
+	items := make([]*service.OpsThroughputPlatformBreakdownItem, 0, 8)
+	for rows.Next() {
+		var platform string
+		var requests int64
+		var tokens sql.NullInt64
+		if err := rows.Scan(&platform, &requests, &tokens); err != nil {
+			return nil, err
+		}
+		tokenConsumed := int64(0)
+		if tokens.Valid {
+			tokenConsumed = tokens.Int64
+		}
+		items = append(items, &service.OpsThroughputPlatformBreakdownItem{
+			Platform:      platform,
+			RequestCount:  requests,
+			TokenConsumed: tokenConsumed,
+		})
+	}
+	if err := rows.Err(); err != nil {
+		return nil, err
+	}
+	return items, nil
+}
+
+func (r *opsRepository) getThroughputTopGroupsByPlatform(ctx context.Context, start, end time.Time, platform string, limit int) ([]*service.OpsThroughputGroupBreakdownItem, error) {
+	if strings.TrimSpace(platform) == "" {
+		return nil, nil
+	}
+	if limit <= 0 || limit > 100 {
+		limit = 10
+	}
+
+	q := `
+WITH usage_totals AS (
+  SELECT ul.group_id AS group_id,
+         g.name AS group_name,
+         COUNT(*) AS success_count,
+         COALESCE(SUM(input_tokens + output_tokens + cache_creation_tokens + cache_read_tokens), 0) AS token_consumed
+  FROM usage_logs ul
+  JOIN groups g ON g.id = ul.group_id
+  WHERE ul.created_at >= $1 AND ul.created_at < $2
+    AND g.platform = $3
+  GROUP BY 1, 2
+),
+error_totals AS (
+  SELECT group_id,
+         COUNT(*) AS error_count
+  FROM ops_error_logs
+  WHERE created_at >= $1 AND created_at < $2
+    AND platform = $3
+    AND group_id IS NOT NULL
+    AND COALESCE(status_code, 0) >= 400
+    AND is_count_tokens = FALSE  -- 排除 count_tokens 请求的错误
+  GROUP BY 1
+),
+combined AS (
+  SELECT COALESCE(u.group_id, e.group_id) AS group_id,
+         COALESCE(u.group_name, g2.name, '') AS group_name,
+         COALESCE(u.success_count, 0) AS success_count,
+         COALESCE(e.error_count, 0) AS error_count,
+         COALESCE(u.token_consumed, 0) AS token_consumed
+  FROM usage_totals u
+  FULL OUTER JOIN error_totals e ON u.group_id = e.group_id
+  LEFT JOIN groups g2 ON g2.id = COALESCE(u.group_id, e.group_id)
+)
+SELECT group_id, group_name, (success_count + error_count) AS request_count, token_consumed
+FROM combined
+WHERE group_id IS NOT NULL
+ORDER BY request_count DESC
+LIMIT $4`
+
+	rows, err := r.db.QueryContext(ctx, q, start, end, platform, limit)
+	if err != nil {
+		return nil, err
+	}
+	defer func() { _ = rows.Close() }()
+
+	items := make([]*service.OpsThroughputGroupBreakdownItem, 0, limit)
+	for rows.Next() {
+		var groupID int64
+		var groupName sql.NullString
+		var requests int64
+		var tokens sql.NullInt64
+		if err := rows.Scan(&groupID, &groupName, &requests, &tokens); err != nil {
+			return nil, err
+		}
+		tokenConsumed := int64(0)
+		if tokens.Valid {
+			tokenConsumed = tokens.Int64
+		}
+		name := ""
+		if groupName.Valid {
+			name = groupName.String
+		}
+		items = append(items, &service.OpsThroughputGroupBreakdownItem{
+			GroupID:       groupID,
+			GroupName:     name,
+			RequestCount:  requests,
+			TokenConsumed: tokenConsumed,
+		})
+	}
+	if err := rows.Err(); err != nil {
+		return nil, err
+	}
+	return items, nil
+}
+
+func opsBucketExprForUsage(bucketSeconds int) string {
+	switch bucketSeconds {
+	case 3600:
+		return "date_trunc('hour', ul.created_at)"
+	case 300:
+		// 5-minute buckets in UTC.
+		return "to_timestamp(floor(extract(epoch from ul.created_at) / 300) * 300)"
+	default:
+		return "date_trunc('minute', ul.created_at)"
+	}
+}
+
+func opsBucketExprForError(bucketSeconds int) string {
+	switch bucketSeconds {
+	case 3600:
+		return "date_trunc('hour', created_at)"
+	case 300:
+		return "to_timestamp(floor(extract(epoch from created_at) / 300) * 300)"
+	default:
+		return "date_trunc('minute', created_at)"
+	}
+}
+
+func opsBucketLabel(bucketSeconds int) string {
+	if bucketSeconds <= 0 {
+		return "1m"
+	}
+	if bucketSeconds%3600 == 0 {
+		h := bucketSeconds / 3600
+		if h <= 0 {
+			h = 1
+		}
+		return fmt.Sprintf("%dh", h)
+	}
+	m := bucketSeconds / 60
+	if m <= 0 {
+		m = 1
+	}
+	return fmt.Sprintf("%dm", m)
+}
+
+func opsFloorToBucketStart(t time.Time, bucketSeconds int) time.Time {
+	t = t.UTC()
+	if bucketSeconds <= 0 {
+		bucketSeconds = 60
+	}
+	secs := t.Unix()
+	floored := secs - (secs % int64(bucketSeconds))
+	return time.Unix(floored, 0).UTC()
+}
+
+func fillOpsThroughputBuckets(start, end time.Time, bucketSeconds int, points []*service.OpsThroughputTrendPoint) []*service.OpsThroughputTrendPoint {
+	if bucketSeconds <= 0 {
+		bucketSeconds = 60
+	}
+	if !start.Before(end) {
+		return points
+	}
+
+	endMinus := end.Add(-time.Nanosecond)
+	if endMinus.Before(start) {
+		return points
+	}
+
+	first := opsFloorToBucketStart(start, bucketSeconds)
+	last := opsFloorToBucketStart(endMinus, bucketSeconds)
+	step := time.Duration(bucketSeconds) * time.Second
+
+	existing := make(map[int64]*service.OpsThroughputTrendPoint, len(points))
+	for _, p := range points {
+		if p == nil {
+			continue
+		}
+		existing[p.BucketStart.UTC().Unix()] = p
+	}
+
+	out := make([]*service.OpsThroughputTrendPoint, 0, int(last.Sub(first)/step)+1)
+	for cursor := first; !cursor.After(last); cursor = cursor.Add(step) {
+		if p, ok := existing[cursor.Unix()]; ok && p != nil {
+			out = append(out, p)
+			continue
+		}
+		out = append(out, &service.OpsThroughputTrendPoint{
+			BucketStart:   cursor,
+			RequestCount:  0,
+			TokenConsumed: 0,
+			SwitchCount:   0,
+			QPS:           0,
+			TPS:           0,
+		})
+	}
+	return out
+}
+
+func (r *opsRepository) GetErrorTrend(ctx context.Context, filter *service.OpsDashboardFilter, bucketSeconds int) (*service.OpsErrorTrendResponse, error) {
+	if r == nil || r.db == nil {
+		return nil, fmt.Errorf("nil ops repository")
+	}
+	if filter == nil {
+		return nil, fmt.Errorf("nil filter")
+	}
+	if filter.StartTime.IsZero() || filter.EndTime.IsZero() {
+		return nil, fmt.Errorf("start_time/end_time required")
+	}
+
+	if bucketSeconds <= 0 {
+		bucketSeconds = 60
+	}
+	if bucketSeconds != 60 && bucketSeconds != 300 && bucketSeconds != 3600 {
+		bucketSeconds = 60
+	}
+
+	start := filter.StartTime.UTC()
+	end := filter.EndTime.UTC()
+	where, args, _ := buildErrorWhere(filter, start, end, 1)
+	bucketExpr := opsBucketExprForError(bucketSeconds)
+
+	q := `
+SELECT
+  ` + bucketExpr + ` AS bucket,
+  COUNT(*) FILTER (WHERE COALESCE(status_code, 0) >= 400) AS error_total,
+  COUNT(*) FILTER (WHERE COALESCE(status_code, 0) >= 400 AND is_business_limited) AS business_limited,
+  COUNT(*) FILTER (WHERE COALESCE(status_code, 0) >= 400 AND NOT is_business_limited) AS error_sla,
+  COUNT(*) FILTER (WHERE error_owner = 'provider' AND NOT is_business_limited AND COALESCE(upstream_status_code, status_code, 0) NOT IN (429, 529)) AS upstream_excl,
+  COUNT(*) FILTER (WHERE error_owner = 'provider' AND NOT is_business_limited AND COALESCE(upstream_status_code, status_code, 0) = 429) AS upstream_429,
+  COUNT(*) FILTER (WHERE error_owner = 'provider' AND NOT is_business_limited AND COALESCE(upstream_status_code, status_code, 0) = 529) AS upstream_529
+FROM ops_error_logs
+` + where + `
+GROUP BY 1
+ORDER BY 1 ASC`
+
+	rows, err := r.db.QueryContext(ctx, q, args...)
+	if err != nil {
+		return nil, err
+	}
+	defer func() { _ = rows.Close() }()
+
+	points := make([]*service.OpsErrorTrendPoint, 0, 256)
+	for rows.Next() {
+		var bucket time.Time
+		var total, businessLimited, sla, upstreamExcl, upstream429, upstream529 int64
+		if err := rows.Scan(&bucket, &total, &businessLimited, &sla, &upstreamExcl, &upstream429, &upstream529); err != nil {
+			return nil, err
+		}
+		points = append(points, &service.OpsErrorTrendPoint{
+			BucketStart: bucket.UTC(),
+
+			ErrorCountTotal:      total,
+			BusinessLimitedCount: businessLimited,
+			ErrorCountSLA:        sla,
+
+			UpstreamErrorCountExcl429529: upstreamExcl,
+			Upstream429Count:             upstream429,
+			Upstream529Count:             upstream529,
+		})
+	}
+	if err := rows.Err(); err != nil {
+		return nil, err
+	}
+
+	points = fillOpsErrorTrendBuckets(start, end, bucketSeconds, points)
+
+	return &service.OpsErrorTrendResponse{
+		Bucket: opsBucketLabel(bucketSeconds),
+		Points: points,
+	}, nil
+}
+
+func fillOpsErrorTrendBuckets(start, end time.Time, bucketSeconds int, points []*service.OpsErrorTrendPoint) []*service.OpsErrorTrendPoint {
+	if bucketSeconds <= 0 {
+		bucketSeconds = 60
+	}
+	if !start.Before(end) {
+		return points
+	}
+
+	endMinus := end.Add(-time.Nanosecond)
+	if endMinus.Before(start) {
+		return points
+	}
+
+	first := opsFloorToBucketStart(start, bucketSeconds)
+	last := opsFloorToBucketStart(endMinus, bucketSeconds)
+	step := time.Duration(bucketSeconds) * time.Second
+
+	existing := make(map[int64]*service.OpsErrorTrendPoint, len(points))
+	for _, p := range points {
+		if p == nil {
+			continue
+		}
+		existing[p.BucketStart.UTC().Unix()] = p
+	}
+
+	out := make([]*service.OpsErrorTrendPoint, 0, int(last.Sub(first)/step)+1)
+	for cursor := first; !cursor.After(last); cursor = cursor.Add(step) {
+		if p, ok := existing[cursor.Unix()]; ok && p != nil {
+			out = append(out, p)
+			continue
+		}
+		out = append(out, &service.OpsErrorTrendPoint{
+			BucketStart: cursor,
+
+			ErrorCountTotal:      0,
+			BusinessLimitedCount: 0,
+			ErrorCountSLA:        0,
+
+			UpstreamErrorCountExcl429529: 0,
+			Upstream429Count:             0,
+			Upstream529Count:             0,
+		})
+	}
+	return out
+}
+
+func (r *opsRepository) GetErrorDistribution(ctx context.Context, filter *service.OpsDashboardFilter) (*service.OpsErrorDistributionResponse, error) {
+	if r == nil || r.db == nil {
+		return nil, fmt.Errorf("nil ops repository")
+	}
+	if filter == nil {
+		return nil, fmt.Errorf("nil filter")
+	}
+	if filter.StartTime.IsZero() || filter.EndTime.IsZero() {
+		return nil, fmt.Errorf("start_time/end_time required")
+	}
+
+	start := filter.StartTime.UTC()
+	end := filter.EndTime.UTC()
+	where, args, _ := buildErrorWhere(filter, start, end, 1)
+
+	q := `
+SELECT
+  COALESCE(upstream_status_code, status_code, 0) AS status_code,
+  COUNT(*) AS total,
+  COUNT(*) FILTER (WHERE NOT is_business_limited) AS sla,
+  COUNT(*) FILTER (WHERE is_business_limited) AS business_limited
+FROM ops_error_logs
+` + where + `
+  AND COALESCE(status_code, 0) >= 400
+GROUP BY 1
+ORDER BY total DESC
+LIMIT 20`
+
+	rows, err := r.db.QueryContext(ctx, q, args...)
+	if err != nil {
+		return nil, err
+	}
+	defer func() { _ = rows.Close() }()
+
+	items := make([]*service.OpsErrorDistributionItem, 0, 16)
+	var total int64
+	for rows.Next() {
+		var statusCode int
+		var cntTotal, cntSLA, cntBiz int64
+		if err := rows.Scan(&statusCode, &cntTotal, &cntSLA, &cntBiz); err != nil {
+			return nil, err
+		}
+		total += cntTotal
+		items = append(items, &service.OpsErrorDistributionItem{
+			StatusCode:      statusCode,
+			Total:           cntTotal,
+			SLA:             cntSLA,
+			BusinessLimited: cntBiz,
+		})
+	}
+	if err := rows.Err(); err != nil {
+		return nil, err
+	}
+
+	return &service.OpsErrorDistributionResponse{
+		Total: total,
+		Items: items,
+	}, nil
+}

llm-gateway-competitors/sub2api-tar/backend/internal/repository/ops_repo_window_stats.go

@@ -0,0 +1,50 @@
+package repository
+
+import (
+	"context"
+	"fmt"
+	"time"
+
+	"github.com/Wei-Shaw/sub2api/internal/service"
+)
+
+func (r *opsRepository) GetWindowStats(ctx context.Context, filter *service.OpsDashboardFilter) (*service.OpsWindowStats, error) {
+	if r == nil || r.db == nil {
+		return nil, fmt.Errorf("nil ops repository")
+	}
+	if filter == nil {
+		return nil, fmt.Errorf("nil filter")
+	}
+	if filter.StartTime.IsZero() || filter.EndTime.IsZero() {
+		return nil, fmt.Errorf("start_time/end_time required")
+	}
+
+	start := filter.StartTime.UTC()
+	end := filter.EndTime.UTC()
+	if start.After(end) {
+		return nil, fmt.Errorf("start_time must be <= end_time")
+	}
+	// Bound excessively large windows to prevent accidental heavy queries.
+	if end.Sub(start) > 24*time.Hour {
+		return nil, fmt.Errorf("window too large")
+	}
+
+	successCount, tokenConsumed, err := r.queryUsageCounts(ctx, filter, start, end)
+	if err != nil {
+		return nil, err
+	}
+
+	errorTotal, _, _, _, _, _, err := r.queryErrorCounts(ctx, filter, start, end)
+	if err != nil {
+		return nil, err
+	}
+
+	return &service.OpsWindowStats{
+		StartTime: start,
+		EndTime:   end,
+
+		SuccessCount:    successCount,
+		ErrorCountTotal: errorTotal,
+		TokenConsumed:   tokenConsumed,
+	}, nil
+}

llm-gateway-competitors/sub2api-tar/backend/internal/repository/ops_write_pressure_integration_test.go

@@ -0,0 +1,79 @@
+//go:build integration
+
+package repository
+
+import (
+	"context"
+	"testing"
+	"time"
+
+	"github.com/Wei-Shaw/sub2api/internal/service"
+	"github.com/stretchr/testify/require"
+)
+
+func TestOpsRepositoryBatchInsertErrorLogs(t *testing.T) {
+	ctx := context.Background()
+	_, _ = integrationDB.ExecContext(ctx, "TRUNCATE ops_error_logs RESTART IDENTITY")
+
+	repo := NewOpsRepository(integrationDB).(*opsRepository)
+	now := time.Now().UTC()
+	inserted, err := repo.BatchInsertErrorLogs(ctx, []*service.OpsInsertErrorLogInput{
+		{
+			RequestID:    "batch-ops-1",
+			ErrorPhase:   "upstream",
+			ErrorType:    "upstream_error",
+			Severity:     "error",
+			StatusCode:   429,
+			ErrorMessage: "rate limited",
+			CreatedAt:    now,
+		},
+		{
+			RequestID:    "batch-ops-2",
+			ErrorPhase:   "internal",
+			ErrorType:    "api_error",
+			Severity:     "error",
+			StatusCode:   500,
+			ErrorMessage: "internal error",
+			CreatedAt:    now.Add(time.Millisecond),
+		},
+	})
+	require.NoError(t, err)
+	require.EqualValues(t, 2, inserted)
+
+	var count int
+	require.NoError(t, integrationDB.QueryRowContext(ctx, "SELECT COUNT(*) FROM ops_error_logs WHERE request_id IN ('batch-ops-1', 'batch-ops-2')").Scan(&count))
+	require.Equal(t, 2, count)
+}
+
+func TestEnqueueSchedulerOutbox_DeduplicatesIdempotentEvents(t *testing.T) {
+	ctx := context.Background()
+	_, _ = integrationDB.ExecContext(ctx, "TRUNCATE scheduler_outbox RESTART IDENTITY")
+
+	accountID := int64(12345)
+	require.NoError(t, enqueueSchedulerOutbox(ctx, integrationDB, service.SchedulerOutboxEventAccountChanged, &accountID, nil, nil))
+	require.NoError(t, enqueueSchedulerOutbox(ctx, integrationDB, service.SchedulerOutboxEventAccountChanged, &accountID, nil, nil))
+
+	var count int
+	require.NoError(t, integrationDB.QueryRowContext(ctx, "SELECT COUNT(*) FROM scheduler_outbox WHERE event_type = $1", service.SchedulerOutboxEventAccountChanged).Scan(&count))
+	require.Equal(t, 1, count)
+
+	time.Sleep(schedulerOutboxDedupWindow + 150*time.Millisecond)
+	require.NoError(t, enqueueSchedulerOutbox(ctx, integrationDB, service.SchedulerOutboxEventAccountChanged, &accountID, nil, nil))
+	require.NoError(t, integrationDB.QueryRowContext(ctx, "SELECT COUNT(*) FROM scheduler_outbox WHERE event_type = $1", service.SchedulerOutboxEventAccountChanged).Scan(&count))
+	require.Equal(t, 2, count)
+}
+
+func TestEnqueueSchedulerOutbox_DoesNotDeduplicateLastUsed(t *testing.T) {
+	ctx := context.Background()
+	_, _ = integrationDB.ExecContext(ctx, "TRUNCATE scheduler_outbox RESTART IDENTITY")
+
+	accountID := int64(67890)
+	payload1 := map[string]any{"last_used": map[string]int64{"67890": 100}}
+	payload2 := map[string]any{"last_used": map[string]int64{"67890": 200}}
+	require.NoError(t, enqueueSchedulerOutbox(ctx, integrationDB, service.SchedulerOutboxEventAccountLastUsed, &accountID, nil, payload1))
+	require.NoError(t, enqueueSchedulerOutbox(ctx, integrationDB, service.SchedulerOutboxEventAccountLastUsed, &accountID, nil, payload2))
+
+	var count int
+	require.NoError(t, integrationDB.QueryRowContext(ctx, "SELECT COUNT(*) FROM scheduler_outbox WHERE event_type = $1", service.SchedulerOutboxEventAccountLastUsed).Scan(&count))
+	require.Equal(t, 2, count)
+}

llm-gateway-competitors/sub2api-tar/backend/internal/repository/pagination.go

@@ -0,0 +1,16 @@
+package repository
+
+import "github.com/Wei-Shaw/sub2api/internal/pkg/pagination"
+
+func paginationResultFromTotal(total int64, params pagination.PaginationParams) *pagination.PaginationResult {
+	pages := int(total) / params.Limit()
+	if int(total)%params.Limit() > 0 {
+		pages++
+	}
+	return &pagination.PaginationResult{
+		Total:    total,
+		Page:     params.Page,
+		PageSize: params.Limit(),
+		Pages:    pages,
+	}
+}

llm-gateway-competitors/sub2api-tar/backend/internal/repository/pricing_service.go

@@ -0,0 +1,105 @@
+package repository
+
+import (
+	"context"
+	"fmt"
+	"io"
+	"log/slog"
+	"net/http"
+	"strings"
+	"time"
+
+	"github.com/Wei-Shaw/sub2api/internal/pkg/httpclient"
+	"github.com/Wei-Shaw/sub2api/internal/service"
+)
+
+type pricingRemoteClient struct {
+	httpClient *http.Client
+}
+
+// pricingRemoteClientError 代理初始化失败时的错误占位客户端
+// 所有请求直接返回初始化错误，禁止回退到直连
+type pricingRemoteClientError struct {
+	err error
+}
+
+func (c *pricingRemoteClientError) FetchPricingJSON(_ context.Context, _ string) ([]byte, error) {
+	return nil, c.err
+}
+
+func (c *pricingRemoteClientError) FetchHashText(_ context.Context, _ string) (string, error) {
+	return "", c.err
+}
+
+// NewPricingRemoteClient 创建定价数据远程客户端
+// proxyURL 为空时直连，支持 http/https/socks5/socks5h 协议
+// 代理配置失败时行为由 allowDirectOnProxyError 控制：
+//   - false（默认）：返回错误占位客户端，禁止回退到直连
+//   - true：回退到直连（仅限管理员显式开启）
+func NewPricingRemoteClient(proxyURL string, allowDirectOnProxyError bool) service.PricingRemoteClient {
+	// 安全说明：httpclient.GetClient 的错误链（url.Parse / proxyutil）不含明文代理凭据，
+	// 但仍通过 slog 仅在服务端日志记录，不会暴露给 HTTP 响应。
+	sharedClient, err := httpclient.GetClient(httpclient.Options{
+		Timeout:  30 * time.Second,
+		ProxyURL: proxyURL,
+	})
+	if err != nil {
+		if strings.TrimSpace(proxyURL) != "" && !allowDirectOnProxyError {
+			slog.Warn("proxy client init failed, all requests will fail", "service", "pricing", "error", err)
+			return &pricingRemoteClientError{err: fmt.Errorf("proxy client init failed and direct fallback is disabled; set security.proxy_fallback.allow_direct_on_error=true to allow fallback: %w", err)}
+		}
+		sharedClient = &http.Client{Timeout: 30 * time.Second}
+	}
+	return &pricingRemoteClient{
+		httpClient: sharedClient,
+	}
+}
+
+func (c *pricingRemoteClient) FetchPricingJSON(ctx context.Context, url string) ([]byte, error) {
+	req, err := http.NewRequestWithContext(ctx, http.MethodGet, url, nil)
+	if err != nil {
+		return nil, err
+	}
+
+	resp, err := c.httpClient.Do(req)
+	if err != nil {
+		return nil, err
+	}
+	defer func() { _ = resp.Body.Close() }()
+
+	if resp.StatusCode != http.StatusOK {
+		return nil, fmt.Errorf("HTTP %d", resp.StatusCode)
+	}
+
+	return io.ReadAll(resp.Body)
+}
+
+func (c *pricingRemoteClient) FetchHashText(ctx context.Context, url string) (string, error) {
+	req, err := http.NewRequestWithContext(ctx, http.MethodGet, url, nil)
+	if err != nil {
+		return "", err
+	}
+
+	resp, err := c.httpClient.Do(req)
+	if err != nil {
+		return "", err
+	}
+	defer func() { _ = resp.Body.Close() }()
+
+	if resp.StatusCode != http.StatusOK {
+		return "", fmt.Errorf("HTTP %d", resp.StatusCode)
+	}
+
+	body, err := io.ReadAll(resp.Body)
+	if err != nil {
+		return "", err
+	}
+
+	// 哈希文件格式：hash  filename 或者纯 hash
+	hash := strings.TrimSpace(string(body))
+	parts := strings.Fields(hash)
+	if len(parts) > 0 {
+		return parts[0], nil
+	}
+	return hash, nil
+}

llm-gateway-competitors/sub2api-tar/backend/internal/repository/pricing_service_test.go

@@ -0,0 +1,161 @@
+package repository
+
+import (
+	"context"
+	"net/http"
+	"net/http/httptest"
+	"testing"
+
+	"github.com/stretchr/testify/require"
+	"github.com/stretchr/testify/suite"
+)
+
+type PricingServiceSuite struct {
+	suite.Suite
+	ctx    context.Context
+	srv    *httptest.Server
+	client *pricingRemoteClient
+}
+
+func (s *PricingServiceSuite) SetupTest() {
+	s.ctx = context.Background()
+	client, ok := NewPricingRemoteClient("", false).(*pricingRemoteClient)
+	require.True(s.T(), ok, "type assertion failed")
+	s.client = client
+}
+
+func (s *PricingServiceSuite) TearDownTest() {
+	if s.srv != nil {
+		s.srv.Close()
+		s.srv = nil
+	}
+}
+
+func (s *PricingServiceSuite) setupServer(handler http.HandlerFunc) {
+	s.srv = newLocalTestServer(s.T(), handler)
+}
+
+func (s *PricingServiceSuite) TestFetchPricingJSON_Success() {
+	s.setupServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+		if r.URL.Path == "/ok" {
+			w.WriteHeader(http.StatusOK)
+			_, _ = w.Write([]byte(`{"ok":true}`))
+			return
+		}
+		w.WriteHeader(http.StatusInternalServerError)
+	}))
+
+	body, err := s.client.FetchPricingJSON(s.ctx, s.srv.URL+"/ok")
+	require.NoError(s.T(), err, "FetchPricingJSON")
+	require.Equal(s.T(), `{"ok":true}`, string(body), "body mismatch")
+}
+
+func (s *PricingServiceSuite) TestFetchPricingJSON_NonOKStatus() {
+	s.setupServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+		w.WriteHeader(http.StatusInternalServerError)
+	}))
+
+	_, err := s.client.FetchPricingJSON(s.ctx, s.srv.URL+"/err")
+	require.Error(s.T(), err, "expected error for non-200 status")
+}
+
+func (s *PricingServiceSuite) TestFetchHashText_ParsesFields() {
+	s.setupServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+		switch r.URL.Path {
+		case "/hashfile":
+			w.WriteHeader(http.StatusOK)
+			_, _ = w.Write([]byte("abc123  model_prices.json\n"))
+		case "/hashonly":
+			w.WriteHeader(http.StatusOK)
+			_, _ = w.Write([]byte("def456\n"))
+		default:
+			w.WriteHeader(http.StatusNotFound)
+		}
+	}))
+
+	hash, err := s.client.FetchHashText(s.ctx, s.srv.URL+"/hashfile")
+	require.NoError(s.T(), err, "FetchHashText")
+	require.Equal(s.T(), "abc123", hash, "hash mismatch")
+
+	hash2, err := s.client.FetchHashText(s.ctx, s.srv.URL+"/hashonly")
+	require.NoError(s.T(), err, "FetchHashText")
+	require.Equal(s.T(), "def456", hash2, "hash mismatch")
+}
+
+func (s *PricingServiceSuite) TestFetchHashText_NonOKStatus() {
+	s.setupServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+		w.WriteHeader(http.StatusNotFound)
+	}))
+
+	_, err := s.client.FetchHashText(s.ctx, s.srv.URL+"/nope")
+	require.Error(s.T(), err, "expected error for non-200 status")
+}
+
+func (s *PricingServiceSuite) TestFetchPricingJSON_InvalidURL() {
+	_, err := s.client.FetchPricingJSON(s.ctx, "://invalid-url")
+	require.Error(s.T(), err, "expected error for invalid URL")
+}
+
+func (s *PricingServiceSuite) TestFetchHashText_EmptyBody() {
+	s.setupServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+		w.WriteHeader(http.StatusOK)
+		// empty body
+	}))
+
+	hash, err := s.client.FetchHashText(s.ctx, s.srv.URL+"/empty")
+	require.NoError(s.T(), err, "FetchHashText empty body should not error")
+	require.Equal(s.T(), "", hash, "expected empty hash")
+}
+
+func (s *PricingServiceSuite) TestFetchHashText_WhitespaceOnly() {
+	s.setupServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+		w.WriteHeader(http.StatusOK)
+		_, _ = w.Write([]byte("   \n"))
+	}))
+
+	hash, err := s.client.FetchHashText(s.ctx, s.srv.URL+"/ws")
+	require.NoError(s.T(), err, "FetchHashText whitespace body should not error")
+	require.Equal(s.T(), "", hash, "expected empty hash after trimming")
+}
+
+func (s *PricingServiceSuite) TestFetchPricingJSON_ContextCancel() {
+	started := make(chan struct{})
+	s.setupServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+		close(started)
+		<-r.Context().Done()
+	}))
+
+	ctx, cancel := context.WithCancel(s.ctx)
+
+	done := make(chan error, 1)
+	go func() {
+		_, err := s.client.FetchPricingJSON(ctx, s.srv.URL+"/block")
+		done <- err
+	}()
+
+	<-started
+	cancel()
+
+	err := <-done
+	require.Error(s.T(), err)
+}
+
+func TestNewPricingRemoteClient_InvalidProxy_NoFallback(t *testing.T) {
+	client := NewPricingRemoteClient("://bad", false)
+	_, ok := client.(*pricingRemoteClientError)
+	require.True(t, ok, "should return error client when proxy is invalid and fallback disabled")
+
+	_, err := client.FetchPricingJSON(context.Background(), "http://example.com")
+	require.Error(t, err)
+	require.Contains(t, err.Error(), "proxy client init failed")
+}
+
+func TestNewPricingRemoteClient_InvalidProxy_WithFallback(t *testing.T) {
+	client := NewPricingRemoteClient("://bad", true)
+	_, ok := client.(*pricingRemoteClient)
+	require.True(t, ok, "should fallback to direct client when allowed")
+}
+
+func TestPricingServiceSuite(t *testing.T) {
+	suite.Run(t, new(PricingServiceSuite))
+}

llm-gateway-competitors/sub2api-tar/backend/internal/repository/promo_code_repo.go

@@ -0,0 +1,273 @@
+package repository
+
+import (
+	"context"
+
+	dbent "github.com/Wei-Shaw/sub2api/ent"
+	"github.com/Wei-Shaw/sub2api/ent/promocode"
+	"github.com/Wei-Shaw/sub2api/ent/promocodeusage"
+	"github.com/Wei-Shaw/sub2api/internal/pkg/pagination"
+	"github.com/Wei-Shaw/sub2api/internal/service"
+)
+
+type promoCodeRepository struct {
+	client *dbent.Client
+}
+
+func NewPromoCodeRepository(client *dbent.Client) service.PromoCodeRepository {
+	return &promoCodeRepository{client: client}
+}
+
+func (r *promoCodeRepository) Create(ctx context.Context, code *service.PromoCode) error {
+	client := clientFromContext(ctx, r.client)
+	builder := client.PromoCode.Create().
+		SetCode(code.Code).
+		SetBonusAmount(code.BonusAmount).
+		SetMaxUses(code.MaxUses).
+		SetUsedCount(code.UsedCount).
+		SetStatus(code.Status).
+		SetNotes(code.Notes)
+
+	if code.ExpiresAt != nil {
+		builder.SetExpiresAt(*code.ExpiresAt)
+	}
+
+	created, err := builder.Save(ctx)
+	if err != nil {
+		return err
+	}
+
+	code.ID = created.ID
+	code.CreatedAt = created.CreatedAt
+	code.UpdatedAt = created.UpdatedAt
+	return nil
+}
+
+func (r *promoCodeRepository) GetByID(ctx context.Context, id int64) (*service.PromoCode, error) {
+	m, err := r.client.PromoCode.Query().
+		Where(promocode.IDEQ(id)).
+		Only(ctx)
+	if err != nil {
+		if dbent.IsNotFound(err) {
+			return nil, service.ErrPromoCodeNotFound
+		}
+		return nil, err
+	}
+	return promoCodeEntityToService(m), nil
+}
+
+func (r *promoCodeRepository) GetByCode(ctx context.Context, code string) (*service.PromoCode, error) {
+	m, err := r.client.PromoCode.Query().
+		Where(promocode.CodeEqualFold(code)).
+		Only(ctx)
+	if err != nil {
+		if dbent.IsNotFound(err) {
+			return nil, service.ErrPromoCodeNotFound
+		}
+		return nil, err
+	}
+	return promoCodeEntityToService(m), nil
+}
+
+func (r *promoCodeRepository) GetByCodeForUpdate(ctx context.Context, code string) (*service.PromoCode, error) {
+	client := clientFromContext(ctx, r.client)
+	m, err := client.PromoCode.Query().
+		Where(promocode.CodeEqualFold(code)).
+		ForUpdate().
+		Only(ctx)
+	if err != nil {
+		if dbent.IsNotFound(err) {
+			return nil, service.ErrPromoCodeNotFound
+		}
+		return nil, err
+	}
+	return promoCodeEntityToService(m), nil
+}
+
+func (r *promoCodeRepository) Update(ctx context.Context, code *service.PromoCode) error {
+	client := clientFromContext(ctx, r.client)
+	builder := client.PromoCode.UpdateOneID(code.ID).
+		SetCode(code.Code).
+		SetBonusAmount(code.BonusAmount).
+		SetMaxUses(code.MaxUses).
+		SetUsedCount(code.UsedCount).
+		SetStatus(code.Status).
+		SetNotes(code.Notes)
+
+	if code.ExpiresAt != nil {
+		builder.SetExpiresAt(*code.ExpiresAt)
+	} else {
+		builder.ClearExpiresAt()
+	}
+
+	updated, err := builder.Save(ctx)
+	if err != nil {
+		if dbent.IsNotFound(err) {
+			return service.ErrPromoCodeNotFound
+		}
+		return err
+	}
+
+	code.UpdatedAt = updated.UpdatedAt
+	return nil
+}
+
+func (r *promoCodeRepository) Delete(ctx context.Context, id int64) error {
+	client := clientFromContext(ctx, r.client)
+	_, err := client.PromoCode.Delete().Where(promocode.IDEQ(id)).Exec(ctx)
+	return err
+}
+
+func (r *promoCodeRepository) List(ctx context.Context, params pagination.PaginationParams) ([]service.PromoCode, *pagination.PaginationResult, error) {
+	return r.ListWithFilters(ctx, params, "", "")
+}
+
+func (r *promoCodeRepository) ListWithFilters(ctx context.Context, params pagination.PaginationParams, status, search string) ([]service.PromoCode, *pagination.PaginationResult, error) {
+	q := r.client.PromoCode.Query()
+
+	if status != "" {
+		q = q.Where(promocode.StatusEQ(status))
+	}
+	if search != "" {
+		q = q.Where(promocode.CodeContainsFold(search))
+	}
+
+	total, err := q.Clone().Count(ctx)
+	if err != nil {
+		return nil, nil, err
+	}
+
+	codes, err := q.
+		Offset(params.Offset()).
+		Limit(params.Limit()).
+		Order(dbent.Desc(promocode.FieldID)).
+		All(ctx)
+	if err != nil {
+		return nil, nil, err
+	}
+
+	outCodes := promoCodeEntitiesToService(codes)
+
+	return outCodes, paginationResultFromTotal(int64(total), params), nil
+}
+
+func (r *promoCodeRepository) CreateUsage(ctx context.Context, usage *service.PromoCodeUsage) error {
+	client := clientFromContext(ctx, r.client)
+	created, err := client.PromoCodeUsage.Create().
+		SetPromoCodeID(usage.PromoCodeID).
+		SetUserID(usage.UserID).
+		SetBonusAmount(usage.BonusAmount).
+		SetUsedAt(usage.UsedAt).
+		Save(ctx)
+	if err != nil {
+		return err
+	}
+
+	usage.ID = created.ID
+	return nil
+}
+
+func (r *promoCodeRepository) GetUsageByPromoCodeAndUser(ctx context.Context, promoCodeID, userID int64) (*service.PromoCodeUsage, error) {
+	m, err := r.client.PromoCodeUsage.Query().
+		Where(
+			promocodeusage.PromoCodeIDEQ(promoCodeID),
+			promocodeusage.UserIDEQ(userID),
+		).
+		Only(ctx)
+	if err != nil {
+		if dbent.IsNotFound(err) {
+			return nil, nil
+		}
+		return nil, err
+	}
+	return promoCodeUsageEntityToService(m), nil
+}
+
+func (r *promoCodeRepository) ListUsagesByPromoCode(ctx context.Context, promoCodeID int64, params pagination.PaginationParams) ([]service.PromoCodeUsage, *pagination.PaginationResult, error) {
+	q := r.client.PromoCodeUsage.Query().
+		Where(promocodeusage.PromoCodeIDEQ(promoCodeID))
+
+	total, err := q.Clone().Count(ctx)
+	if err != nil {
+		return nil, nil, err
+	}
+
+	usages, err := q.
+		WithUser().
+		Offset(params.Offset()).
+		Limit(params.Limit()).
+		Order(dbent.Desc(promocodeusage.FieldID)).
+		All(ctx)
+	if err != nil {
+		return nil, nil, err
+	}
+
+	outUsages := promoCodeUsageEntitiesToService(usages)
+
+	return outUsages, paginationResultFromTotal(int64(total), params), nil
+}
+
+func (r *promoCodeRepository) IncrementUsedCount(ctx context.Context, id int64) error {
+	client := clientFromContext(ctx, r.client)
+	_, err := client.PromoCode.UpdateOneID(id).
+		AddUsedCount(1).
+		Save(ctx)
+	return err
+}
+
+// Entity to Service conversions
+
+func promoCodeEntityToService(m *dbent.PromoCode) *service.PromoCode {
+	if m == nil {
+		return nil
+	}
+	return &service.PromoCode{
+		ID:          m.ID,
+		Code:        m.Code,
+		BonusAmount: m.BonusAmount,
+		MaxUses:     m.MaxUses,
+		UsedCount:   m.UsedCount,
+		Status:      m.Status,
+		ExpiresAt:   m.ExpiresAt,
+		Notes:       derefString(m.Notes),
+		CreatedAt:   m.CreatedAt,
+		UpdatedAt:   m.UpdatedAt,
+	}
+}
+
+func promoCodeEntitiesToService(models []*dbent.PromoCode) []service.PromoCode {
+	out := make([]service.PromoCode, 0, len(models))
+	for i := range models {
+		if s := promoCodeEntityToService(models[i]); s != nil {
+			out = append(out, *s)
+		}
+	}
+	return out
+}
+
+func promoCodeUsageEntityToService(m *dbent.PromoCodeUsage) *service.PromoCodeUsage {
+	if m == nil {
+		return nil
+	}
+	out := &service.PromoCodeUsage{
+		ID:          m.ID,
+		PromoCodeID: m.PromoCodeID,
+		UserID:      m.UserID,
+		BonusAmount: m.BonusAmount,
+		UsedAt:      m.UsedAt,
+	}
+	if m.Edges.User != nil {
+		out.User = userEntityToService(m.Edges.User)
+	}
+	return out
+}
+
+func promoCodeUsageEntitiesToService(models []*dbent.PromoCodeUsage) []service.PromoCodeUsage {
+	out := make([]service.PromoCodeUsage, 0, len(models))
+	for i := range models {
+		if s := promoCodeUsageEntityToService(models[i]); s != nil {
+			out = append(out, *s)
+		}
+	}
+	return out
+}

llm-gateway-competitors/sub2api-tar/backend/internal/repository/proxy_latency_cache.go

@@ -0,0 +1,74 @@
+package repository
+
+import (
+	"context"
+	"encoding/json"
+	"fmt"
+
+	"github.com/Wei-Shaw/sub2api/internal/service"
+	"github.com/redis/go-redis/v9"
+)
+
+const proxyLatencyKeyPrefix = "proxy:latency:"
+
+func proxyLatencyKey(proxyID int64) string {
+	return fmt.Sprintf("%s%d", proxyLatencyKeyPrefix, proxyID)
+}
+
+type proxyLatencyCache struct {
+	rdb *redis.Client
+}
+
+func NewProxyLatencyCache(rdb *redis.Client) service.ProxyLatencyCache {
+	return &proxyLatencyCache{rdb: rdb}
+}
+
+func (c *proxyLatencyCache) GetProxyLatencies(ctx context.Context, proxyIDs []int64) (map[int64]*service.ProxyLatencyInfo, error) {
+	results := make(map[int64]*service.ProxyLatencyInfo)
+	if len(proxyIDs) == 0 {
+		return results, nil
+	}
+
+	keys := make([]string, 0, len(proxyIDs))
+	for _, id := range proxyIDs {
+		keys = append(keys, proxyLatencyKey(id))
+	}
+
+	values, err := c.rdb.MGet(ctx, keys...).Result()
+	if err != nil {
+		return results, err
+	}
+
+	for i, raw := range values {
+		if raw == nil {
+			continue
+		}
+		var payload []byte
+		switch v := raw.(type) {
+		case string:
+			payload = []byte(v)
+		case []byte:
+			payload = v
+		default:
+			continue
+		}
+		var info service.ProxyLatencyInfo
+		if err := json.Unmarshal(payload, &info); err != nil {
+			continue
+		}
+		results[proxyIDs[i]] = &info
+	}
+
+	return results, nil
+}
+
+func (c *proxyLatencyCache) SetProxyLatency(ctx context.Context, proxyID int64, info *service.ProxyLatencyInfo) error {
+	if info == nil {
+		return nil
+	}
+	payload, err := json.Marshal(info)
+	if err != nil {
+		return err
+	}
+	return c.rdb.Set(ctx, proxyLatencyKey(proxyID), payload, 0).Err()
+}

llm-gateway-competitors/sub2api-tar/backend/internal/repository/proxy_probe_service.go

@@ -0,0 +1,182 @@
+package repository
+
+import (
+	"context"
+	"encoding/json"
+	"fmt"
+	"io"
+	"log"
+	"net/http"
+	"strings"
+	"time"
+
+	"github.com/Wei-Shaw/sub2api/internal/config"
+	"github.com/Wei-Shaw/sub2api/internal/pkg/httpclient"
+	"github.com/Wei-Shaw/sub2api/internal/service"
+)
+
+func NewProxyExitInfoProber(cfg *config.Config) service.ProxyExitInfoProber {
+	insecure := false
+	allowPrivate := false
+	validateResolvedIP := true
+	maxResponseBytes := defaultProxyProbeResponseMaxBytes
+	if cfg != nil {
+		insecure = cfg.Security.ProxyProbe.InsecureSkipVerify
+		allowPrivate = cfg.Security.URLAllowlist.AllowPrivateHosts
+		validateResolvedIP = cfg.Security.URLAllowlist.Enabled
+		if cfg.Gateway.ProxyProbeResponseReadMaxBytes > 0 {
+			maxResponseBytes = cfg.Gateway.ProxyProbeResponseReadMaxBytes
+		}
+	}
+	if insecure {
+		log.Printf("[ProxyProbe] Warning: insecure_skip_verify is not allowed and will cause probe failure.")
+	}
+	return &proxyProbeService{
+		insecureSkipVerify: insecure,
+		allowPrivateHosts:  allowPrivate,
+		validateResolvedIP: validateResolvedIP,
+		maxResponseBytes:   maxResponseBytes,
+	}
+}
+
+const (
+	defaultProxyProbeTimeout          = 30 * time.Second
+	defaultProxyProbeResponseMaxBytes = int64(1024 * 1024)
+)
+
+// probeURLs 按优先级排列的探测 URL 列表
+// 某些 AI API 专用代理只允许访问特定域名，因此需要多个备选
+var probeURLs = []struct {
+	url    string
+	parser string // "ip-api" or "httpbin"
+}{
+	{"http://ip-api.com/json/?lang=zh-CN", "ip-api"},
+	{"http://httpbin.org/ip", "httpbin"},
+}
+
+type proxyProbeService struct {
+	insecureSkipVerify bool
+	allowPrivateHosts  bool
+	validateResolvedIP bool
+	maxResponseBytes   int64
+}
+
+func (s *proxyProbeService) ProbeProxy(ctx context.Context, proxyURL string) (*service.ProxyExitInfo, int64, error) {
+	client, err := httpclient.GetClient(httpclient.Options{
+		ProxyURL:           proxyURL,
+		Timeout:            defaultProxyProbeTimeout,
+		InsecureSkipVerify: s.insecureSkipVerify,
+		ValidateResolvedIP: s.validateResolvedIP,
+		AllowPrivateHosts:  s.allowPrivateHosts,
+	})
+	if err != nil {
+		return nil, 0, fmt.Errorf("failed to create proxy client: %w", err)
+	}
+
+	var lastErr error
+	for _, probe := range probeURLs {
+		exitInfo, latencyMs, err := s.probeWithURL(ctx, client, probe.url, probe.parser)
+		if err == nil {
+			return exitInfo, latencyMs, nil
+		}
+		lastErr = err
+	}
+
+	return nil, 0, fmt.Errorf("all probe URLs failed, last error: %w", lastErr)
+}
+
+func (s *proxyProbeService) probeWithURL(ctx context.Context, client *http.Client, url string, parser string) (*service.ProxyExitInfo, int64, error) {
+	startTime := time.Now()
+	req, err := http.NewRequestWithContext(ctx, "GET", url, nil)
+	if err != nil {
+		return nil, 0, fmt.Errorf("failed to create request: %w", err)
+	}
+
+	resp, err := client.Do(req)
+	if err != nil {
+		return nil, 0, fmt.Errorf("proxy connection failed: %w", err)
+	}
+	defer func() { _ = resp.Body.Close() }()
+
+	latencyMs := time.Since(startTime).Milliseconds()
+
+	if resp.StatusCode != http.StatusOK {
+		return nil, latencyMs, fmt.Errorf("request failed with status: %d", resp.StatusCode)
+	}
+
+	maxResponseBytes := s.maxResponseBytes
+	if maxResponseBytes <= 0 {
+		maxResponseBytes = defaultProxyProbeResponseMaxBytes
+	}
+	body, err := io.ReadAll(io.LimitReader(resp.Body, maxResponseBytes+1))
+	if err != nil {
+		return nil, latencyMs, fmt.Errorf("failed to read response: %w", err)
+	}
+	if int64(len(body)) > maxResponseBytes {
+		return nil, latencyMs, fmt.Errorf("proxy probe response exceeds limit: %d", maxResponseBytes)
+	}
+
+	switch parser {
+	case "ip-api":
+		return s.parseIPAPI(body, latencyMs)
+	case "httpbin":
+		return s.parseHTTPBin(body, latencyMs)
+	default:
+		return nil, latencyMs, fmt.Errorf("unknown parser: %s", parser)
+	}
+}
+
+func (s *proxyProbeService) parseIPAPI(body []byte, latencyMs int64) (*service.ProxyExitInfo, int64, error) {
+	var ipInfo struct {
+		Status      string `json:"status"`
+		Message     string `json:"message"`
+		Query       string `json:"query"`
+		City        string `json:"city"`
+		Region      string `json:"region"`
+		RegionName  string `json:"regionName"`
+		Country     string `json:"country"`
+		CountryCode string `json:"countryCode"`
+	}
+
+	if err := json.Unmarshal(body, &ipInfo); err != nil {
+		preview := string(body)
+		if len(preview) > 200 {
+			preview = preview[:200] + "..."
+		}
+		return nil, latencyMs, fmt.Errorf("failed to parse response: %w (body: %s)", err, preview)
+	}
+	if strings.ToLower(ipInfo.Status) != "success" {
+		if ipInfo.Message == "" {
+			ipInfo.Message = "ip-api request failed"
+		}
+		return nil, latencyMs, fmt.Errorf("ip-api request failed: %s", ipInfo.Message)
+	}
+
+	region := ipInfo.RegionName
+	if region == "" {
+		region = ipInfo.Region
+	}
+	return &service.ProxyExitInfo{
+		IP:          ipInfo.Query,
+		City:        ipInfo.City,
+		Region:      region,
+		Country:     ipInfo.Country,
+		CountryCode: ipInfo.CountryCode,
+	}, latencyMs, nil
+}
+
+func (s *proxyProbeService) parseHTTPBin(body []byte, latencyMs int64) (*service.ProxyExitInfo, int64, error) {
+	// httpbin.org/ip 返回格式: {"origin": "1.2.3.4"}
+	var result struct {
+		Origin string `json:"origin"`
+	}
+	if err := json.Unmarshal(body, &result); err != nil {
+		return nil, latencyMs, fmt.Errorf("failed to parse httpbin response: %w", err)
+	}
+	if result.Origin == "" {
+		return nil, latencyMs, fmt.Errorf("httpbin: no IP found in response")
+	}
+	return &service.ProxyExitInfo{
+		IP: result.Origin,
+	}, latencyMs, nil
+}

llm-gateway-competitors/sub2api-tar/backend/internal/repository/proxy_probe_service_test.go

@@ -0,0 +1,171 @@
+package repository
+
+import (
+	"context"
+	"io"
+	"net/http"
+	"net/http/httptest"
+	"strings"
+	"testing"
+
+	"github.com/stretchr/testify/require"
+	"github.com/stretchr/testify/suite"
+)
+
+type ProxyProbeServiceSuite struct {
+	suite.Suite
+	ctx      context.Context
+	proxySrv *httptest.Server
+	prober   *proxyProbeService
+}
+
+func (s *ProxyProbeServiceSuite) SetupTest() {
+	s.ctx = context.Background()
+	s.prober = &proxyProbeService{
+		allowPrivateHosts: true,
+	}
+}
+
+func (s *ProxyProbeServiceSuite) TearDownTest() {
+	if s.proxySrv != nil {
+		s.proxySrv.Close()
+		s.proxySrv = nil
+	}
+}
+
+func (s *ProxyProbeServiceSuite) setupProxyServer(handler http.HandlerFunc) {
+	s.proxySrv = newLocalTestServer(s.T(), handler)
+}
+
+func (s *ProxyProbeServiceSuite) TestProbeProxy_InvalidProxyURL() {
+	_, _, err := s.prober.ProbeProxy(s.ctx, "://bad")
+	require.Error(s.T(), err)
+	require.ErrorContains(s.T(), err, "failed to create proxy client")
+}
+
+func (s *ProxyProbeServiceSuite) TestProbeProxy_UnsupportedProxyScheme() {
+	_, _, err := s.prober.ProbeProxy(s.ctx, "ftp://127.0.0.1:1")
+	require.Error(s.T(), err)
+	require.ErrorContains(s.T(), err, "failed to create proxy client")
+}
+
+func (s *ProxyProbeServiceSuite) TestProbeProxy_Success_IPAPI() {
+	s.setupProxyServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+		// 检查是否是 ip-api 请求
+		if strings.Contains(r.RequestURI, "ip-api.com") {
+			w.Header().Set("Content-Type", "application/json")
+			_, _ = io.WriteString(w, `{"status":"success","query":"1.2.3.4","city":"c","regionName":"r","country":"cc","countryCode":"CC"}`)
+			return
+		}
+		// 其他请求返回错误
+		w.WriteHeader(http.StatusServiceUnavailable)
+	}))
+
+	info, latencyMs, err := s.prober.ProbeProxy(s.ctx, s.proxySrv.URL)
+	require.NoError(s.T(), err, "ProbeProxy")
+	require.GreaterOrEqual(s.T(), latencyMs, int64(0), "unexpected latency")
+	require.Equal(s.T(), "1.2.3.4", info.IP)
+	require.Equal(s.T(), "c", info.City)
+	require.Equal(s.T(), "r", info.Region)
+	require.Equal(s.T(), "cc", info.Country)
+	require.Equal(s.T(), "CC", info.CountryCode)
+}
+
+func (s *ProxyProbeServiceSuite) TestProbeProxy_Success_HTTPBinFallback() {
+	s.setupProxyServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+		// ip-api 失败
+		if strings.Contains(r.RequestURI, "ip-api.com") {
+			w.WriteHeader(http.StatusServiceUnavailable)
+			return
+		}
+		// httpbin 成功
+		if strings.Contains(r.RequestURI, "httpbin.org") {
+			w.Header().Set("Content-Type", "application/json")
+			_, _ = io.WriteString(w, `{"origin": "5.6.7.8"}`)
+			return
+		}
+		w.WriteHeader(http.StatusServiceUnavailable)
+	}))
+
+	info, latencyMs, err := s.prober.ProbeProxy(s.ctx, s.proxySrv.URL)
+	require.NoError(s.T(), err, "ProbeProxy should fallback to httpbin")
+	require.GreaterOrEqual(s.T(), latencyMs, int64(0), "unexpected latency")
+	require.Equal(s.T(), "5.6.7.8", info.IP)
+}
+
+func (s *ProxyProbeServiceSuite) TestProbeProxy_AllFailed() {
+	s.setupProxyServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+		w.WriteHeader(http.StatusServiceUnavailable)
+	}))
+
+	_, _, err := s.prober.ProbeProxy(s.ctx, s.proxySrv.URL)
+	require.Error(s.T(), err)
+	require.ErrorContains(s.T(), err, "all probe URLs failed")
+}
+
+func (s *ProxyProbeServiceSuite) TestProbeProxy_InvalidJSON() {
+	s.setupProxyServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+		if strings.Contains(r.RequestURI, "ip-api.com") {
+			w.Header().Set("Content-Type", "application/json")
+			_, _ = io.WriteString(w, "not-json")
+			return
+		}
+		// httpbin 也返回无效响应
+		if strings.Contains(r.RequestURI, "httpbin.org") {
+			w.Header().Set("Content-Type", "application/json")
+			_, _ = io.WriteString(w, "not-json")
+			return
+		}
+		w.WriteHeader(http.StatusServiceUnavailable)
+	}))
+
+	_, _, err := s.prober.ProbeProxy(s.ctx, s.proxySrv.URL)
+	require.Error(s.T(), err)
+	require.ErrorContains(s.T(), err, "all probe URLs failed")
+}
+
+func (s *ProxyProbeServiceSuite) TestProbeProxy_ProxyServerClosed() {
+	s.setupProxyServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {}))
+	s.proxySrv.Close()
+
+	_, _, err := s.prober.ProbeProxy(s.ctx, s.proxySrv.URL)
+	require.Error(s.T(), err, "expected error when proxy server is closed")
+}
+
+func (s *ProxyProbeServiceSuite) TestParseIPAPI_Success() {
+	body := []byte(`{"status":"success","query":"1.2.3.4","city":"Beijing","regionName":"Beijing","country":"China","countryCode":"CN"}`)
+	info, latencyMs, err := s.prober.parseIPAPI(body, 100)
+	require.NoError(s.T(), err)
+	require.Equal(s.T(), int64(100), latencyMs)
+	require.Equal(s.T(), "1.2.3.4", info.IP)
+	require.Equal(s.T(), "Beijing", info.City)
+	require.Equal(s.T(), "Beijing", info.Region)
+	require.Equal(s.T(), "China", info.Country)
+	require.Equal(s.T(), "CN", info.CountryCode)
+}
+
+func (s *ProxyProbeServiceSuite) TestParseIPAPI_Failure() {
+	body := []byte(`{"status":"fail","message":"rate limited"}`)
+	_, _, err := s.prober.parseIPAPI(body, 100)
+	require.Error(s.T(), err)
+	require.ErrorContains(s.T(), err, "rate limited")
+}
+
+func (s *ProxyProbeServiceSuite) TestParseHTTPBin_Success() {
+	body := []byte(`{"origin": "9.8.7.6"}`)
+	info, latencyMs, err := s.prober.parseHTTPBin(body, 50)
+	require.NoError(s.T(), err)
+	require.Equal(s.T(), int64(50), latencyMs)
+	require.Equal(s.T(), "9.8.7.6", info.IP)
+}
+
+func (s *ProxyProbeServiceSuite) TestParseHTTPBin_NoIP() {
+	body := []byte(`{"origin": ""}`)
+	_, _, err := s.prober.parseHTTPBin(body, 50)
+	require.Error(s.T(), err)
+	require.ErrorContains(s.T(), err, "no IP found")
+}
+
+func TestProxyProbeServiceSuite(t *testing.T) {
+	suite.Run(t, new(ProxyProbeServiceSuite))
+}

llm-gateway-competitors/sub2api-tar/backend/internal/repository/proxy_repo.go

@@ -0,0 +1,378 @@
+package repository
+
+import (
+	"context"
+	"database/sql"
+
+	dbent "github.com/Wei-Shaw/sub2api/ent"
+	"github.com/Wei-Shaw/sub2api/ent/proxy"
+	"github.com/Wei-Shaw/sub2api/internal/service"
+
+	"github.com/Wei-Shaw/sub2api/internal/pkg/pagination"
+)
+
+type sqlQuerier interface {
+	QueryContext(ctx context.Context, query string, args ...any) (*sql.Rows, error)
+}
+
+type proxyRepository struct {
+	client *dbent.Client
+	sql    sqlQuerier
+}
+
+func NewProxyRepository(client *dbent.Client, sqlDB *sql.DB) service.ProxyRepository {
+	return newProxyRepositoryWithSQL(client, sqlDB)
+}
+
+func newProxyRepositoryWithSQL(client *dbent.Client, sqlq sqlQuerier) *proxyRepository {
+	return &proxyRepository{client: client, sql: sqlq}
+}
+
+func (r *proxyRepository) Create(ctx context.Context, proxyIn *service.Proxy) error {
+	builder := r.client.Proxy.Create().
+		SetName(proxyIn.Name).
+		SetProtocol(proxyIn.Protocol).
+		SetHost(proxyIn.Host).
+		SetPort(proxyIn.Port).
+		SetStatus(proxyIn.Status)
+	if proxyIn.Username != "" {
+		builder.SetUsername(proxyIn.Username)
+	}
+	if proxyIn.Password != "" {
+		builder.SetPassword(proxyIn.Password)
+	}
+
+	created, err := builder.Save(ctx)
+	if err == nil {
+		applyProxyEntityToService(proxyIn, created)
+	}
+	return err
+}
+
+func (r *proxyRepository) GetByID(ctx context.Context, id int64) (*service.Proxy, error) {
+	m, err := r.client.Proxy.Get(ctx, id)
+	if err != nil {
+		if dbent.IsNotFound(err) {
+			return nil, service.ErrProxyNotFound
+		}
+		return nil, err
+	}
+	return proxyEntityToService(m), nil
+}
+
+func (r *proxyRepository) ListByIDs(ctx context.Context, ids []int64) ([]service.Proxy, error) {
+	if len(ids) == 0 {
+		return []service.Proxy{}, nil
+	}
+
+	proxies, err := r.client.Proxy.Query().
+		Where(proxy.IDIn(ids...)).
+		All(ctx)
+	if err != nil {
+		return nil, err
+	}
+
+	out := make([]service.Proxy, 0, len(proxies))
+	for i := range proxies {
+		out = append(out, *proxyEntityToService(proxies[i]))
+	}
+	return out, nil
+}
+
+func (r *proxyRepository) Update(ctx context.Context, proxyIn *service.Proxy) error {
+	builder := r.client.Proxy.UpdateOneID(proxyIn.ID).
+		SetName(proxyIn.Name).
+		SetProtocol(proxyIn.Protocol).
+		SetHost(proxyIn.Host).
+		SetPort(proxyIn.Port).
+		SetStatus(proxyIn.Status)
+	if proxyIn.Username != "" {
+		builder.SetUsername(proxyIn.Username)
+	} else {
+		builder.ClearUsername()
+	}
+	if proxyIn.Password != "" {
+		builder.SetPassword(proxyIn.Password)
+	} else {
+		builder.ClearPassword()
+	}
+
+	updated, err := builder.Save(ctx)
+	if err == nil {
+		applyProxyEntityToService(proxyIn, updated)
+		return nil
+	}
+	if dbent.IsNotFound(err) {
+		return service.ErrProxyNotFound
+	}
+	return err
+}
+
+func (r *proxyRepository) Delete(ctx context.Context, id int64) error {
+	_, err := r.client.Proxy.Delete().Where(proxy.IDEQ(id)).Exec(ctx)
+	return err
+}
+
+func (r *proxyRepository) List(ctx context.Context, params pagination.PaginationParams) ([]service.Proxy, *pagination.PaginationResult, error) {
+	return r.ListWithFilters(ctx, params, "", "", "")
+}
+
+// ListWithFilters lists proxies with optional filtering by protocol, status, and search query
+func (r *proxyRepository) ListWithFilters(ctx context.Context, params pagination.PaginationParams, protocol, status, search string) ([]service.Proxy, *pagination.PaginationResult, error) {
+	q := r.client.Proxy.Query()
+	if protocol != "" {
+		q = q.Where(proxy.ProtocolEQ(protocol))
+	}
+	if status != "" {
+		q = q.Where(proxy.StatusEQ(status))
+	}
+	if search != "" {
+		q = q.Where(proxy.NameContainsFold(search))
+	}
+
+	total, err := q.Count(ctx)
+	if err != nil {
+		return nil, nil, err
+	}
+
+	proxies, err := q.
+		Offset(params.Offset()).
+		Limit(params.Limit()).
+		Order(dbent.Desc(proxy.FieldID)).
+		All(ctx)
+	if err != nil {
+		return nil, nil, err
+	}
+
+	outProxies := make([]service.Proxy, 0, len(proxies))
+	for i := range proxies {
+		outProxies = append(outProxies, *proxyEntityToService(proxies[i]))
+	}
+
+	return outProxies, paginationResultFromTotal(int64(total), params), nil
+}
+
+// ListWithFiltersAndAccountCount lists proxies with filters and includes account count per proxy
+func (r *proxyRepository) ListWithFiltersAndAccountCount(ctx context.Context, params pagination.PaginationParams, protocol, status, search string) ([]service.ProxyWithAccountCount, *pagination.PaginationResult, error) {
+	q := r.client.Proxy.Query()
+	if protocol != "" {
+		q = q.Where(proxy.ProtocolEQ(protocol))
+	}
+	if status != "" {
+		q = q.Where(proxy.StatusEQ(status))
+	}
+	if search != "" {
+		q = q.Where(proxy.NameContainsFold(search))
+	}
+
+	total, err := q.Count(ctx)
+	if err != nil {
+		return nil, nil, err
+	}
+
+	proxies, err := q.
+		Offset(params.Offset()).
+		Limit(params.Limit()).
+		Order(dbent.Desc(proxy.FieldID)).
+		All(ctx)
+	if err != nil {
+		return nil, nil, err
+	}
+
+	// Get account counts
+	counts, err := r.GetAccountCountsForProxies(ctx)
+	if err != nil {
+		return nil, nil, err
+	}
+
+	// Build result with account counts
+	result := make([]service.ProxyWithAccountCount, 0, len(proxies))
+	for i := range proxies {
+		proxyOut := proxyEntityToService(proxies[i])
+		if proxyOut == nil {
+			continue
+		}
+		result = append(result, service.ProxyWithAccountCount{
+			Proxy:        *proxyOut,
+			AccountCount: counts[proxyOut.ID],
+		})
+	}
+
+	return result, paginationResultFromTotal(int64(total), params), nil
+}
+
+func (r *proxyRepository) ListActive(ctx context.Context) ([]service.Proxy, error) {
+	proxies, err := r.client.Proxy.Query().
+		Where(proxy.StatusEQ(service.StatusActive)).
+		All(ctx)
+	if err != nil {
+		return nil, err
+	}
+	outProxies := make([]service.Proxy, 0, len(proxies))
+	for i := range proxies {
+		outProxies = append(outProxies, *proxyEntityToService(proxies[i]))
+	}
+	return outProxies, nil
+}
+
+// ExistsByHostPortAuth checks if a proxy with the same host, port, username, and password exists
+func (r *proxyRepository) ExistsByHostPortAuth(ctx context.Context, host string, port int, username, password string) (bool, error) {
+	q := r.client.Proxy.Query().
+		Where(proxy.HostEQ(host), proxy.PortEQ(port))
+
+	if username == "" {
+		q = q.Where(proxy.Or(proxy.UsernameIsNil(), proxy.UsernameEQ("")))
+	} else {
+		q = q.Where(proxy.UsernameEQ(username))
+	}
+	if password == "" {
+		q = q.Where(proxy.Or(proxy.PasswordIsNil(), proxy.PasswordEQ("")))
+	} else {
+		q = q.Where(proxy.PasswordEQ(password))
+	}
+
+	count, err := q.Count(ctx)
+	return count > 0, err
+}
+
+// CountAccountsByProxyID returns the number of accounts using a specific proxy
+func (r *proxyRepository) CountAccountsByProxyID(ctx context.Context, proxyID int64) (int64, error) {
+	var count int64
+	if err := scanSingleRow(ctx, r.sql, "SELECT COUNT(*) FROM accounts WHERE proxy_id = $1 AND deleted_at IS NULL", []any{proxyID}, &count); err != nil {
+		return 0, err
+	}
+	return count, nil
+}
+
+func (r *proxyRepository) ListAccountSummariesByProxyID(ctx context.Context, proxyID int64) ([]service.ProxyAccountSummary, error) {
+	rows, err := r.sql.QueryContext(ctx, `
+		SELECT id, name, platform, type, notes
+		FROM accounts
+		WHERE proxy_id = $1 AND deleted_at IS NULL
+		ORDER BY id DESC
+	`, proxyID)
+	if err != nil {
+		return nil, err
+	}
+	defer func() { _ = rows.Close() }()
+
+	out := make([]service.ProxyAccountSummary, 0)
+	for rows.Next() {
+		var (
+			id       int64
+			name     string
+			platform string
+			accType  string
+			notes    sql.NullString
+		)
+		if err := rows.Scan(&id, &name, &platform, &accType, &notes); err != nil {
+			return nil, err
+		}
+		var notesPtr *string
+		if notes.Valid {
+			notesPtr = &notes.String
+		}
+		out = append(out, service.ProxyAccountSummary{
+			ID:       id,
+			Name:     name,
+			Platform: platform,
+			Type:     accType,
+			Notes:    notesPtr,
+		})
+	}
+	if err := rows.Err(); err != nil {
+		return nil, err
+	}
+	return out, nil
+}
+
+// GetAccountCountsForProxies returns a map of proxy ID to account count for all proxies
+func (r *proxyRepository) GetAccountCountsForProxies(ctx context.Context) (counts map[int64]int64, err error) {
+	rows, err := r.sql.QueryContext(ctx, "SELECT proxy_id, COUNT(*) AS count FROM accounts WHERE proxy_id IS NOT NULL AND deleted_at IS NULL GROUP BY proxy_id")
+	if err != nil {
+		return nil, err
+	}
+	defer func() {
+		if closeErr := rows.Close(); closeErr != nil && err == nil {
+			err = closeErr
+			counts = nil
+		}
+	}()
+
+	counts = make(map[int64]int64)
+	for rows.Next() {
+		var proxyID, count int64
+		if err = rows.Scan(&proxyID, &count); err != nil {
+			return nil, err
+		}
+		counts[proxyID] = count
+	}
+	if err = rows.Err(); err != nil {
+		return nil, err
+	}
+	return counts, nil
+}
+
+// ListActiveWithAccountCount returns all active proxies with account count, sorted by creation time descending
+func (r *proxyRepository) ListActiveWithAccountCount(ctx context.Context) ([]service.ProxyWithAccountCount, error) {
+	proxies, err := r.client.Proxy.Query().
+		Where(proxy.StatusEQ(service.StatusActive)).
+		Order(dbent.Desc(proxy.FieldCreatedAt)).
+		All(ctx)
+	if err != nil {
+		return nil, err
+	}
+
+	// Get account counts
+	counts, err := r.GetAccountCountsForProxies(ctx)
+	if err != nil {
+		return nil, err
+	}
+
+	// Build result with account counts
+	result := make([]service.ProxyWithAccountCount, 0, len(proxies))
+	for i := range proxies {
+		proxyOut := proxyEntityToService(proxies[i])
+		if proxyOut == nil {
+			continue
+		}
+		result = append(result, service.ProxyWithAccountCount{
+			Proxy:        *proxyOut,
+			AccountCount: counts[proxyOut.ID],
+		})
+	}
+
+	return result, nil
+}
+
+func proxyEntityToService(m *dbent.Proxy) *service.Proxy {
+	if m == nil {
+		return nil
+	}
+	out := &service.Proxy{
+		ID:        m.ID,
+		Name:      m.Name,
+		Protocol:  m.Protocol,
+		Host:      m.Host,
+		Port:      m.Port,
+		Status:    m.Status,
+		CreatedAt: m.CreatedAt,
+		UpdatedAt: m.UpdatedAt,
+	}
+	if m.Username != nil {
+		out.Username = *m.Username
+	}
+	if m.Password != nil {
+		out.Password = *m.Password
+	}
+	return out
+}
+
+func applyProxyEntityToService(dst *service.Proxy, src *dbent.Proxy) {
+	if dst == nil || src == nil {
+		return
+	}
+	dst.ID = src.ID
+	dst.CreatedAt = src.CreatedAt
+	dst.UpdatedAt = src.UpdatedAt
+}

llm-gateway-competitors/sub2api-tar/backend/internal/repository/proxy_repo_integration_test.go

@@ -0,0 +1,329 @@
+//go:build integration
+
+package repository
+
+import (
+	"context"
+	"testing"
+	"time"
+
+	dbent "github.com/Wei-Shaw/sub2api/ent"
+	"github.com/Wei-Shaw/sub2api/internal/pkg/pagination"
+	"github.com/Wei-Shaw/sub2api/internal/service"
+	"github.com/stretchr/testify/suite"
+)
+
+type ProxyRepoSuite struct {
+	suite.Suite
+	ctx  context.Context
+	tx   *dbent.Tx
+	repo *proxyRepository
+}
+
+func (s *ProxyRepoSuite) SetupTest() {
+	s.ctx = context.Background()
+	tx := testEntTx(s.T())
+	s.tx = tx
+	s.repo = newProxyRepositoryWithSQL(tx.Client(), tx)
+}
+
+func TestProxyRepoSuite(t *testing.T) {
+	suite.Run(t, new(ProxyRepoSuite))
+}
+
+// --- Create / GetByID / Update / Delete ---
+
+func (s *ProxyRepoSuite) TestCreate() {
+	proxy := &service.Proxy{
+		Name:     "test-create",
+		Protocol: "http",
+		Host:     "127.0.0.1",
+		Port:     8080,
+		Status:   service.StatusActive,
+	}
+
+	err := s.repo.Create(s.ctx, proxy)
+	s.Require().NoError(err, "Create")
+	s.Require().NotZero(proxy.ID, "expected ID to be set")
+
+	got, err := s.repo.GetByID(s.ctx, proxy.ID)
+	s.Require().NoError(err, "GetByID")
+	s.Require().Equal("test-create", got.Name)
+}
+
+func (s *ProxyRepoSuite) TestGetByID_NotFound() {
+	_, err := s.repo.GetByID(s.ctx, 999999)
+	s.Require().Error(err, "expected error for non-existent ID")
+}
+
+func (s *ProxyRepoSuite) TestUpdate() {
+	proxy := &service.Proxy{
+		Name:     "original",
+		Protocol: "http",
+		Host:     "127.0.0.1",
+		Port:     8080,
+		Status:   service.StatusActive,
+	}
+	s.Require().NoError(s.repo.Create(s.ctx, proxy))
+
+	proxy.Name = "updated"
+	err := s.repo.Update(s.ctx, proxy)
+	s.Require().NoError(err, "Update")
+
+	got, err := s.repo.GetByID(s.ctx, proxy.ID)
+	s.Require().NoError(err, "GetByID after update")
+	s.Require().Equal("updated", got.Name)
+}
+
+func (s *ProxyRepoSuite) TestDelete() {
+	proxy := &service.Proxy{
+		Name:     "to-delete",
+		Protocol: "http",
+		Host:     "127.0.0.1",
+		Port:     8080,
+		Status:   service.StatusActive,
+	}
+	s.Require().NoError(s.repo.Create(s.ctx, proxy))
+
+	err := s.repo.Delete(s.ctx, proxy.ID)
+	s.Require().NoError(err, "Delete")
+
+	_, err = s.repo.GetByID(s.ctx, proxy.ID)
+	s.Require().Error(err, "expected error after delete")
+}
+
+// --- List / ListWithFilters ---
+
+func (s *ProxyRepoSuite) TestList() {
+	s.mustCreateProxy(&service.Proxy{Name: "p1", Protocol: "http", Host: "127.0.0.1", Port: 8080, Status: service.StatusActive})
+	s.mustCreateProxy(&service.Proxy{Name: "p2", Protocol: "http", Host: "127.0.0.1", Port: 8081, Status: service.StatusActive})
+
+	proxies, page, err := s.repo.List(s.ctx, pagination.PaginationParams{Page: 1, PageSize: 10})
+	s.Require().NoError(err, "List")
+	s.Require().Len(proxies, 2)
+	s.Require().Equal(int64(2), page.Total)
+}
+
+func (s *ProxyRepoSuite) TestListWithFilters_Protocol() {
+	s.mustCreateProxy(&service.Proxy{Name: "p1", Protocol: "http", Host: "127.0.0.1", Port: 8080, Status: service.StatusActive})
+	s.mustCreateProxy(&service.Proxy{Name: "p2", Protocol: "socks5", Host: "127.0.0.1", Port: 8081, Status: service.StatusActive})
+
+	proxies, _, err := s.repo.ListWithFilters(s.ctx, pagination.PaginationParams{Page: 1, PageSize: 10}, "socks5", "", "")
+	s.Require().NoError(err)
+	s.Require().Len(proxies, 1)
+	s.Require().Equal("socks5", proxies[0].Protocol)
+}
+
+func (s *ProxyRepoSuite) TestListWithFilters_Status() {
+	s.mustCreateProxy(&service.Proxy{Name: "p1", Protocol: "http", Host: "127.0.0.1", Port: 8080, Status: service.StatusActive})
+	s.mustCreateProxy(&service.Proxy{Name: "p2", Protocol: "http", Host: "127.0.0.1", Port: 8081, Status: service.StatusDisabled})
+
+	proxies, _, err := s.repo.ListWithFilters(s.ctx, pagination.PaginationParams{Page: 1, PageSize: 10}, "", service.StatusDisabled, "")
+	s.Require().NoError(err)
+	s.Require().Len(proxies, 1)
+	s.Require().Equal(service.StatusDisabled, proxies[0].Status)
+}
+
+func (s *ProxyRepoSuite) TestListWithFilters_Search() {
+	s.mustCreateProxy(&service.Proxy{Name: "production-proxy", Protocol: "http", Host: "127.0.0.1", Port: 8080, Status: service.StatusActive})
+	s.mustCreateProxy(&service.Proxy{Name: "dev-proxy", Protocol: "http", Host: "127.0.0.1", Port: 8081, Status: service.StatusActive})
+
+	proxies, _, err := s.repo.ListWithFilters(s.ctx, pagination.PaginationParams{Page: 1, PageSize: 10}, "", "", "prod")
+	s.Require().NoError(err)
+	s.Require().Len(proxies, 1)
+	s.Require().Contains(proxies[0].Name, "production")
+}
+
+// --- ListActive ---
+
+func (s *ProxyRepoSuite) TestListActive() {
+	s.mustCreateProxy(&service.Proxy{Name: "active1", Protocol: "http", Host: "127.0.0.1", Port: 8080, Status: service.StatusActive})
+	s.mustCreateProxy(&service.Proxy{Name: "inactive1", Protocol: "http", Host: "127.0.0.1", Port: 8081, Status: service.StatusDisabled})
+
+	proxies, err := s.repo.ListActive(s.ctx)
+	s.Require().NoError(err, "ListActive")
+	s.Require().Len(proxies, 1)
+	s.Require().Equal("active1", proxies[0].Name)
+}
+
+// --- ExistsByHostPortAuth ---
+
+func (s *ProxyRepoSuite) TestExistsByHostPortAuth() {
+	s.mustCreateProxy(&service.Proxy{
+		Name:     "p1",
+		Protocol: "http",
+		Host:     "1.2.3.4",
+		Port:     8080,
+		Username: "user",
+		Password: "pass",
+		Status:   service.StatusActive,
+	})
+
+	exists, err := s.repo.ExistsByHostPortAuth(s.ctx, "1.2.3.4", 8080, "user", "pass")
+	s.Require().NoError(err, "ExistsByHostPortAuth")
+	s.Require().True(exists)
+
+	notExists, err := s.repo.ExistsByHostPortAuth(s.ctx, "1.2.3.4", 8080, "wrong", "creds")
+	s.Require().NoError(err)
+	s.Require().False(notExists)
+}
+
+func (s *ProxyRepoSuite) TestExistsByHostPortAuth_NoAuth() {
+	s.mustCreateProxy(&service.Proxy{
+		Name:     "p-noauth",
+		Protocol: "http",
+		Host:     "5.6.7.8",
+		Port:     8081,
+		Username: "",
+		Password: "",
+		Status:   service.StatusActive,
+	})
+
+	exists, err := s.repo.ExistsByHostPortAuth(s.ctx, "5.6.7.8", 8081, "", "")
+	s.Require().NoError(err)
+	s.Require().True(exists)
+}
+
+// --- CountAccountsByProxyID ---
+
+func (s *ProxyRepoSuite) TestCountAccountsByProxyID() {
+	proxy := s.mustCreateProxy(&service.Proxy{Name: "p-count", Protocol: "http", Host: "127.0.0.1", Port: 8080, Status: service.StatusActive})
+	s.mustInsertAccount("a1", &proxy.ID)
+	s.mustInsertAccount("a2", &proxy.ID)
+	s.mustInsertAccount("a3", nil) // no proxy
+
+	count, err := s.repo.CountAccountsByProxyID(s.ctx, proxy.ID)
+	s.Require().NoError(err, "CountAccountsByProxyID")
+	s.Require().Equal(int64(2), count)
+}
+
+func (s *ProxyRepoSuite) TestCountAccountsByProxyID_Zero() {
+	proxy := s.mustCreateProxy(&service.Proxy{Name: "p-zero", Protocol: "http", Host: "127.0.0.1", Port: 8080, Status: service.StatusActive})
+
+	count, err := s.repo.CountAccountsByProxyID(s.ctx, proxy.ID)
+	s.Require().NoError(err)
+	s.Require().Zero(count)
+}
+
+// --- GetAccountCountsForProxies ---
+
+func (s *ProxyRepoSuite) TestGetAccountCountsForProxies() {
+	p1 := s.mustCreateProxy(&service.Proxy{Name: "p1", Protocol: "http", Host: "127.0.0.1", Port: 8080, Status: service.StatusActive})
+	p2 := s.mustCreateProxy(&service.Proxy{Name: "p2", Protocol: "http", Host: "127.0.0.1", Port: 8081, Status: service.StatusActive})
+
+	s.mustInsertAccount("a1", &p1.ID)
+	s.mustInsertAccount("a2", &p1.ID)
+	s.mustInsertAccount("a3", &p2.ID)
+
+	counts, err := s.repo.GetAccountCountsForProxies(s.ctx)
+	s.Require().NoError(err, "GetAccountCountsForProxies")
+	s.Require().Equal(int64(2), counts[p1.ID])
+	s.Require().Equal(int64(1), counts[p2.ID])
+}
+
+func (s *ProxyRepoSuite) TestGetAccountCountsForProxies_Empty() {
+	counts, err := s.repo.GetAccountCountsForProxies(s.ctx)
+	s.Require().NoError(err)
+	s.Require().Empty(counts)
+}
+
+// --- ListActiveWithAccountCount ---
+
+func (s *ProxyRepoSuite) TestListActiveWithAccountCount() {
+	base := time.Date(2025, 1, 1, 12, 0, 0, 0, time.UTC)
+
+	p1 := s.mustCreateProxyWithTimes("p1", service.StatusActive, base.Add(-1*time.Hour))
+	p2 := s.mustCreateProxyWithTimes("p2", service.StatusActive, base)
+	s.mustCreateProxyWithTimes("p3-inactive", service.StatusDisabled, base.Add(1*time.Hour))
+
+	s.mustInsertAccount("a1", &p1.ID)
+	s.mustInsertAccount("a2", &p1.ID)
+	s.mustInsertAccount("a3", &p2.ID)
+
+	withCounts, err := s.repo.ListActiveWithAccountCount(s.ctx)
+	s.Require().NoError(err, "ListActiveWithAccountCount")
+	s.Require().Len(withCounts, 2, "expected 2 active proxies")
+
+	// Sorted by created_at DESC, so p2 first
+	s.Require().Equal(p2.ID, withCounts[0].ID)
+	s.Require().Equal(int64(1), withCounts[0].AccountCount)
+	s.Require().Equal(p1.ID, withCounts[1].ID)
+	s.Require().Equal(int64(2), withCounts[1].AccountCount)
+}
+
+// --- Combined original test ---
+
+func (s *ProxyRepoSuite) TestExistsByHostPortAuth_And_AccountCountAggregates() {
+	p1 := s.mustCreateProxy(&service.Proxy{Name: "p1", Protocol: "http", Host: "1.2.3.4", Port: 8080, Username: "u", Password: "p", Status: service.StatusActive})
+	p2 := s.mustCreateProxy(&service.Proxy{Name: "p2", Protocol: "http", Host: "5.6.7.8", Port: 8081, Username: "", Password: "", Status: service.StatusActive})
+
+	exists, err := s.repo.ExistsByHostPortAuth(s.ctx, "1.2.3.4", 8080, "u", "p")
+	s.Require().NoError(err, "ExistsByHostPortAuth")
+	s.Require().True(exists, "expected proxy to exist")
+
+	s.mustInsertAccount("a1", &p1.ID)
+	s.mustInsertAccount("a2", &p1.ID)
+	s.mustInsertAccount("a3", &p2.ID)
+
+	count1, err := s.repo.CountAccountsByProxyID(s.ctx, p1.ID)
+	s.Require().NoError(err, "CountAccountsByProxyID")
+	s.Require().Equal(int64(2), count1, "expected 2 accounts for p1")
+
+	counts, err := s.repo.GetAccountCountsForProxies(s.ctx)
+	s.Require().NoError(err, "GetAccountCountsForProxies")
+	s.Require().Equal(int64(2), counts[p1.ID])
+	s.Require().Equal(int64(1), counts[p2.ID])
+
+	withCounts, err := s.repo.ListActiveWithAccountCount(s.ctx)
+	s.Require().NoError(err, "ListActiveWithAccountCount")
+	s.Require().Len(withCounts, 2, "expected 2 proxies")
+	for _, pc := range withCounts {
+		switch pc.ID {
+		case p1.ID:
+			s.Require().Equal(int64(2), pc.AccountCount, "p1 count mismatch")
+		case p2.ID:
+			s.Require().Equal(int64(1), pc.AccountCount, "p2 count mismatch")
+		default:
+			s.Require().Fail("unexpected proxy id", pc.ID)
+		}
+	}
+}
+
+func (s *ProxyRepoSuite) mustCreateProxy(p *service.Proxy) *service.Proxy {
+	s.T().Helper()
+	s.Require().NoError(s.repo.Create(s.ctx, p), "create proxy")
+	return p
+}
+
+func (s *ProxyRepoSuite) mustCreateProxyWithTimes(name, status string, createdAt time.Time) *service.Proxy {
+	s.T().Helper()
+
+	// Use the repository create for standard fields, then update timestamps via raw SQL to keep deterministic ordering.
+	p := s.mustCreateProxy(&service.Proxy{
+		Name:     name,
+		Protocol: "http",
+		Host:     "127.0.0.1",
+		Port:     8080,
+		Status:   status,
+	})
+	_, err := s.tx.ExecContext(s.ctx, "UPDATE proxies SET created_at = $1, updated_at = $1 WHERE id = $2", createdAt, p.ID)
+	s.Require().NoError(err, "update proxy timestamps")
+	return p
+}
+
+func (s *ProxyRepoSuite) mustInsertAccount(name string, proxyID *int64) {
+	s.T().Helper()
+	var pid any
+	if proxyID != nil {
+		pid = *proxyID
+	}
+	_, err := s.tx.ExecContext(
+		s.ctx,
+		"INSERT INTO accounts (name, platform, type, proxy_id) VALUES ($1, $2, $3, $4)",
+		name,
+		service.PlatformAnthropic,
+		service.AccountTypeOAuth,
+		pid,
+	)
+	s.Require().NoError(err, "insert account")
+}

llm-gateway-competitors/sub2api-tar/backend/internal/repository/redeem_cache.go

@@ -0,0 +1,62 @@
+package repository
+
+import (
+	"context"
+	"fmt"
+	"time"
+
+	"github.com/Wei-Shaw/sub2api/internal/service"
+	"github.com/redis/go-redis/v9"
+)
+
+const (
+	redeemRateLimitKeyPrefix = "redeem:ratelimit:"
+	redeemLockKeyPrefix      = "redeem:lock:"
+	redeemRateLimitDuration  = 24 * time.Hour
+)
+
+// redeemRateLimitKey generates the Redis key for redeem attempt rate limiting.
+func redeemRateLimitKey(userID int64) string {
+	return fmt.Sprintf("%s%d", redeemRateLimitKeyPrefix, userID)
+}
+
+// redeemLockKey generates the Redis key for redeem code locking.
+func redeemLockKey(code string) string {
+	return redeemLockKeyPrefix + code
+}
+
+type redeemCache struct {
+	rdb *redis.Client
+}
+
+func NewRedeemCache(rdb *redis.Client) service.RedeemCache {
+	return &redeemCache{rdb: rdb}
+}
+
+func (c *redeemCache) GetRedeemAttemptCount(ctx context.Context, userID int64) (int, error) {
+	key := redeemRateLimitKey(userID)
+	count, err := c.rdb.Get(ctx, key).Int()
+	if err == redis.Nil {
+		return 0, nil
+	}
+	return count, err
+}
+
+func (c *redeemCache) IncrementRedeemAttemptCount(ctx context.Context, userID int64) error {
+	key := redeemRateLimitKey(userID)
+	pipe := c.rdb.Pipeline()
+	pipe.Incr(ctx, key)
+	pipe.Expire(ctx, key, redeemRateLimitDuration)
+	_, err := pipe.Exec(ctx)
+	return err
+}
+
+func (c *redeemCache) AcquireRedeemLock(ctx context.Context, code string, ttl time.Duration) (bool, error) {
+	key := redeemLockKey(code)
+	return c.rdb.SetNX(ctx, key, 1, ttl).Result()
+}
+
+func (c *redeemCache) ReleaseRedeemLock(ctx context.Context, code string) error {
+	key := redeemLockKey(code)
+	return c.rdb.Del(ctx, key).Err()
+}

llm-gateway-competitors/sub2api-tar/backend/internal/repository/redeem_cache_integration_test.go

@@ -0,0 +1,103 @@
+//go:build integration
+
+package repository
+
+import (
+	"fmt"
+	"testing"
+	"time"
+
+	"github.com/stretchr/testify/require"
+	"github.com/stretchr/testify/suite"
+)
+
+type RedeemCacheSuite struct {
+	IntegrationRedisSuite
+	cache *redeemCache
+}
+
+func (s *RedeemCacheSuite) SetupTest() {
+	s.IntegrationRedisSuite.SetupTest()
+	s.cache = NewRedeemCache(s.rdb).(*redeemCache)
+}
+
+func (s *RedeemCacheSuite) TestGetRedeemAttemptCount_Missing() {
+	missingUserID := int64(99999)
+	count, err := s.cache.GetRedeemAttemptCount(s.ctx, missingUserID)
+	require.NoError(s.T(), err, "expected nil error for missing rate-limit key")
+	require.Equal(s.T(), 0, count, "expected zero count for missing key")
+}
+
+func (s *RedeemCacheSuite) TestIncrementAndGetRedeemAttemptCount() {
+	userID := int64(1)
+	key := fmt.Sprintf("%s%d", redeemRateLimitKeyPrefix, userID)
+
+	require.NoError(s.T(), s.cache.IncrementRedeemAttemptCount(s.ctx, userID), "IncrementRedeemAttemptCount")
+	count, err := s.cache.GetRedeemAttemptCount(s.ctx, userID)
+	require.NoError(s.T(), err, "GetRedeemAttemptCount")
+	require.Equal(s.T(), 1, count, "count mismatch")
+
+	ttl, err := s.rdb.TTL(s.ctx, key).Result()
+	require.NoError(s.T(), err, "TTL")
+	s.AssertTTLWithin(ttl, 1*time.Second, redeemRateLimitDuration)
+}
+
+func (s *RedeemCacheSuite) TestMultipleIncrements() {
+	userID := int64(2)
+
+	require.NoError(s.T(), s.cache.IncrementRedeemAttemptCount(s.ctx, userID))
+	require.NoError(s.T(), s.cache.IncrementRedeemAttemptCount(s.ctx, userID))
+	require.NoError(s.T(), s.cache.IncrementRedeemAttemptCount(s.ctx, userID))
+
+	count, err := s.cache.GetRedeemAttemptCount(s.ctx, userID)
+	require.NoError(s.T(), err)
+	require.Equal(s.T(), 3, count, "count after 3 increments")
+}
+
+func (s *RedeemCacheSuite) TestAcquireAndReleaseRedeemLock() {
+	ok, err := s.cache.AcquireRedeemLock(s.ctx, "CODE", 10*time.Second)
+	require.NoError(s.T(), err, "AcquireRedeemLock")
+	require.True(s.T(), ok)
+
+	// Second acquire should fail
+	ok, err = s.cache.AcquireRedeemLock(s.ctx, "CODE", 10*time.Second)
+	require.NoError(s.T(), err, "AcquireRedeemLock 2")
+	require.False(s.T(), ok, "expected lock to be held")
+
+	// Release
+	require.NoError(s.T(), s.cache.ReleaseRedeemLock(s.ctx, "CODE"), "ReleaseRedeemLock")
+
+	// Now acquire should succeed
+	ok, err = s.cache.AcquireRedeemLock(s.ctx, "CODE", 10*time.Second)
+	require.NoError(s.T(), err, "AcquireRedeemLock after release")
+	require.True(s.T(), ok)
+}
+
+func (s *RedeemCacheSuite) TestAcquireRedeemLock_TTL() {
+	lockKey := redeemLockKeyPrefix + "CODE2"
+	lockTTL := 15 * time.Second
+
+	ok, err := s.cache.AcquireRedeemLock(s.ctx, "CODE2", lockTTL)
+	require.NoError(s.T(), err, "AcquireRedeemLock CODE2")
+	require.True(s.T(), ok)
+
+	ttl, err := s.rdb.TTL(s.ctx, lockKey).Result()
+	require.NoError(s.T(), err, "TTL lock key")
+	s.AssertTTLWithin(ttl, 1*time.Second, lockTTL)
+}
+
+func (s *RedeemCacheSuite) TestReleaseRedeemLock_Idempotent() {
+	// Release a lock that doesn't exist should not error
+	require.NoError(s.T(), s.cache.ReleaseRedeemLock(s.ctx, "NONEXISTENT"))
+
+	// Acquire, release, release again
+	ok, err := s.cache.AcquireRedeemLock(s.ctx, "IDEMPOTENT", 10*time.Second)
+	require.NoError(s.T(), err)
+	require.True(s.T(), ok)
+	require.NoError(s.T(), s.cache.ReleaseRedeemLock(s.ctx, "IDEMPOTENT"))
+	require.NoError(s.T(), s.cache.ReleaseRedeemLock(s.ctx, "IDEMPOTENT"), "second release should be idempotent")
+}
+
+func TestRedeemCacheSuite(t *testing.T) {
+	suite.Run(t, new(RedeemCacheSuite))
+}

llm-gateway-competitors/sub2api-tar/backend/internal/repository/redeem_cache_test.go

@@ -0,0 +1,77 @@
+//go:build unit
+
+package repository
+
+import (
+	"math"
+	"testing"
+
+	"github.com/stretchr/testify/require"
+)
+
+func TestRedeemRateLimitKey(t *testing.T) {
+	tests := []struct {
+		name     string
+		userID   int64
+		expected string
+	}{
+		{
+			name:     "normal_user_id",
+			userID:   123,
+			expected: "redeem:ratelimit:123",
+		},
+		{
+			name:     "zero_user_id",
+			userID:   0,
+			expected: "redeem:ratelimit:0",
+		},
+		{
+			name:     "negative_user_id",
+			userID:   -1,
+			expected: "redeem:ratelimit:-1",
+		},
+		{
+			name:     "max_int64",
+			userID:   math.MaxInt64,
+			expected: "redeem:ratelimit:9223372036854775807",
+		},
+	}
+
+	for _, tc := range tests {
+		t.Run(tc.name, func(t *testing.T) {
+			got := redeemRateLimitKey(tc.userID)
+			require.Equal(t, tc.expected, got)
+		})
+	}
+}
+
+func TestRedeemLockKey(t *testing.T) {
+	tests := []struct {
+		name     string
+		code     string
+		expected string
+	}{
+		{
+			name:     "normal_code",
+			code:     "ABC123",
+			expected: "redeem:lock:ABC123",
+		},
+		{
+			name:     "empty_code",
+			code:     "",
+			expected: "redeem:lock:",
+		},
+		{
+			name:     "code_with_special_chars",
+			code:     "CODE-2024:test",
+			expected: "redeem:lock:CODE-2024:test",
+		},
+	}
+
+	for _, tc := range tests {
+		t.Run(tc.name, func(t *testing.T) {
+			got := redeemLockKey(tc.code)
+			require.Equal(t, tc.expected, got)
+		})
+	}
+}

llm-gateway-competitors/sub2api-tar/backend/internal/repository/redeem_code_repo.go

@@ -0,0 +1,296 @@
+package repository
+
+import (
+	"context"
+	"time"
+
+	dbent "github.com/Wei-Shaw/sub2api/ent"
+	"github.com/Wei-Shaw/sub2api/ent/redeemcode"
+	"github.com/Wei-Shaw/sub2api/ent/user"
+	"github.com/Wei-Shaw/sub2api/internal/pkg/pagination"
+	"github.com/Wei-Shaw/sub2api/internal/service"
+)
+
+type redeemCodeRepository struct {
+	client *dbent.Client
+}
+
+func NewRedeemCodeRepository(client *dbent.Client) service.RedeemCodeRepository {
+	return &redeemCodeRepository{client: client}
+}
+
+func (r *redeemCodeRepository) Create(ctx context.Context, code *service.RedeemCode) error {
+	created, err := r.client.RedeemCode.Create().
+		SetCode(code.Code).
+		SetType(code.Type).
+		SetValue(code.Value).
+		SetStatus(code.Status).
+		SetNotes(code.Notes).
+		SetValidityDays(code.ValidityDays).
+		SetNillableUsedBy(code.UsedBy).
+		SetNillableUsedAt(code.UsedAt).
+		SetNillableGroupID(code.GroupID).
+		Save(ctx)
+	if err == nil {
+		code.ID = created.ID
+		code.CreatedAt = created.CreatedAt
+	}
+	return err
+}
+
+func (r *redeemCodeRepository) CreateBatch(ctx context.Context, codes []service.RedeemCode) error {
+	if len(codes) == 0 {
+		return nil
+	}
+
+	builders := make([]*dbent.RedeemCodeCreate, 0, len(codes))
+	for i := range codes {
+		c := &codes[i]
+		b := r.client.RedeemCode.Create().
+			SetCode(c.Code).
+			SetType(c.Type).
+			SetValue(c.Value).
+			SetStatus(c.Status).
+			SetNotes(c.Notes).
+			SetValidityDays(c.ValidityDays).
+			SetNillableUsedBy(c.UsedBy).
+			SetNillableUsedAt(c.UsedAt).
+			SetNillableGroupID(c.GroupID)
+		builders = append(builders, b)
+	}
+
+	return r.client.RedeemCode.CreateBulk(builders...).Exec(ctx)
+}
+
+func (r *redeemCodeRepository) GetByID(ctx context.Context, id int64) (*service.RedeemCode, error) {
+	m, err := r.client.RedeemCode.Query().
+		Where(redeemcode.IDEQ(id)).
+		Only(ctx)
+	if err != nil {
+		if dbent.IsNotFound(err) {
+			return nil, service.ErrRedeemCodeNotFound
+		}
+		return nil, err
+	}
+	return redeemCodeEntityToService(m), nil
+}
+
+func (r *redeemCodeRepository) GetByCode(ctx context.Context, code string) (*service.RedeemCode, error) {
+	m, err := r.client.RedeemCode.Query().
+		Where(redeemcode.CodeEQ(code)).
+		Only(ctx)
+	if err != nil {
+		if dbent.IsNotFound(err) {
+			return nil, service.ErrRedeemCodeNotFound
+		}
+		return nil, err
+	}
+	return redeemCodeEntityToService(m), nil
+}
+
+func (r *redeemCodeRepository) Delete(ctx context.Context, id int64) error {
+	_, err := r.client.RedeemCode.Delete().Where(redeemcode.IDEQ(id)).Exec(ctx)
+	return err
+}
+
+func (r *redeemCodeRepository) List(ctx context.Context, params pagination.PaginationParams) ([]service.RedeemCode, *pagination.PaginationResult, error) {
+	return r.ListWithFilters(ctx, params, "", "", "")
+}
+
+func (r *redeemCodeRepository) ListWithFilters(ctx context.Context, params pagination.PaginationParams, codeType, status, search string) ([]service.RedeemCode, *pagination.PaginationResult, error) {
+	q := r.client.RedeemCode.Query()
+
+	if codeType != "" {
+		q = q.Where(redeemcode.TypeEQ(codeType))
+	}
+	if status != "" {
+		q = q.Where(redeemcode.StatusEQ(status))
+	}
+	if search != "" {
+		q = q.Where(
+			redeemcode.Or(
+				redeemcode.CodeContainsFold(search),
+				redeemcode.HasUserWith(user.EmailContainsFold(search)),
+			),
+		)
+	}
+
+	total, err := q.Count(ctx)
+	if err != nil {
+		return nil, nil, err
+	}
+
+	codes, err := q.
+		WithUser().
+		WithGroup().
+		Offset(params.Offset()).
+		Limit(params.Limit()).
+		Order(dbent.Desc(redeemcode.FieldID)).
+		All(ctx)
+	if err != nil {
+		return nil, nil, err
+	}
+
+	outCodes := redeemCodeEntitiesToService(codes)
+
+	return outCodes, paginationResultFromTotal(int64(total), params), nil
+}
+
+func (r *redeemCodeRepository) Update(ctx context.Context, code *service.RedeemCode) error {
+	up := r.client.RedeemCode.UpdateOneID(code.ID).
+		SetCode(code.Code).
+		SetType(code.Type).
+		SetValue(code.Value).
+		SetStatus(code.Status).
+		SetNotes(code.Notes).
+		SetValidityDays(code.ValidityDays)
+
+	if code.UsedBy != nil {
+		up.SetUsedBy(*code.UsedBy)
+	} else {
+		up.ClearUsedBy()
+	}
+	if code.UsedAt != nil {
+		up.SetUsedAt(*code.UsedAt)
+	} else {
+		up.ClearUsedAt()
+	}
+	if code.GroupID != nil {
+		up.SetGroupID(*code.GroupID)
+	} else {
+		up.ClearGroupID()
+	}
+
+	updated, err := up.Save(ctx)
+	if err != nil {
+		if dbent.IsNotFound(err) {
+			return service.ErrRedeemCodeNotFound
+		}
+		return err
+	}
+	code.CreatedAt = updated.CreatedAt
+	return nil
+}
+
+func (r *redeemCodeRepository) Use(ctx context.Context, id, userID int64) error {
+	now := time.Now()
+	client := clientFromContext(ctx, r.client)
+	affected, err := client.RedeemCode.Update().
+		Where(redeemcode.IDEQ(id), redeemcode.StatusEQ(service.StatusUnused)).
+		SetStatus(service.StatusUsed).
+		SetUsedBy(userID).
+		SetUsedAt(now).
+		Save(ctx)
+	if err != nil {
+		return err
+	}
+	if affected == 0 {
+		return service.ErrRedeemCodeUsed
+	}
+	return nil
+}
+
+func (r *redeemCodeRepository) ListByUser(ctx context.Context, userID int64, limit int) ([]service.RedeemCode, error) {
+	if limit <= 0 {
+		limit = 10
+	}
+
+	codes, err := r.client.RedeemCode.Query().
+		Where(redeemcode.UsedByEQ(userID)).
+		WithGroup().
+		Order(dbent.Desc(redeemcode.FieldUsedAt)).
+		Limit(limit).
+		All(ctx)
+	if err != nil {
+		return nil, err
+	}
+
+	return redeemCodeEntitiesToService(codes), nil
+}
+
+// ListByUserPaginated returns paginated balance/concurrency history for a user.
+// Supports optional type filter (e.g. "balance", "admin_balance", "concurrency", "admin_concurrency", "subscription").
+func (r *redeemCodeRepository) ListByUserPaginated(ctx context.Context, userID int64, params pagination.PaginationParams, codeType string) ([]service.RedeemCode, *pagination.PaginationResult, error) {
+	q := r.client.RedeemCode.Query().
+		Where(redeemcode.UsedByEQ(userID))
+
+	// Optional type filter
+	if codeType != "" {
+		q = q.Where(redeemcode.TypeEQ(codeType))
+	}
+
+	total, err := q.Count(ctx)
+	if err != nil {
+		return nil, nil, err
+	}
+
+	codes, err := q.
+		WithGroup().
+		Offset(params.Offset()).
+		Limit(params.Limit()).
+		Order(dbent.Desc(redeemcode.FieldUsedAt)).
+		All(ctx)
+	if err != nil {
+		return nil, nil, err
+	}
+
+	return redeemCodeEntitiesToService(codes), paginationResultFromTotal(int64(total), params), nil
+}
+
+// SumPositiveBalanceByUser returns total recharged amount (sum of value > 0 where type is balance/admin_balance).
+func (r *redeemCodeRepository) SumPositiveBalanceByUser(ctx context.Context, userID int64) (float64, error) {
+	var result []struct {
+		Sum float64 `json:"sum"`
+	}
+	err := r.client.RedeemCode.Query().
+		Where(
+			redeemcode.UsedByEQ(userID),
+			redeemcode.ValueGT(0),
+			redeemcode.TypeIn("balance", "admin_balance"),
+		).
+		Aggregate(dbent.As(dbent.Sum(redeemcode.FieldValue), "sum")).
+		Scan(ctx, &result)
+	if err != nil {
+		return 0, err
+	}
+	if len(result) == 0 {
+		return 0, nil
+	}
+	return result[0].Sum, nil
+}
+
+func redeemCodeEntityToService(m *dbent.RedeemCode) *service.RedeemCode {
+	if m == nil {
+		return nil
+	}
+	out := &service.RedeemCode{
+		ID:           m.ID,
+		Code:         m.Code,
+		Type:         m.Type,
+		Value:        m.Value,
+		Status:       m.Status,
+		UsedBy:       m.UsedBy,
+		UsedAt:       m.UsedAt,
+		Notes:        derefString(m.Notes),
+		CreatedAt:    m.CreatedAt,
+		GroupID:      m.GroupID,
+		ValidityDays: m.ValidityDays,
+	}
+	if m.Edges.User != nil {
+		out.User = userEntityToService(m.Edges.User)
+	}
+	if m.Edges.Group != nil {
+		out.Group = groupEntityToService(m.Edges.Group)
+	}
+	return out
+}
+
+func redeemCodeEntitiesToService(models []*dbent.RedeemCode) []service.RedeemCode {
+	out := make([]service.RedeemCode, 0, len(models))
+	for i := range models {
+		if s := redeemCodeEntityToService(models[i]); s != nil {
+			out = append(out, *s)
+		}
+	}
+	return out
+}

llm-gateway-competitors/sub2api-tar/backend/internal/repository/redeem_code_repo_integration_test.go

@@ -0,0 +1,390 @@
+//go:build integration
+
+package repository
+
+import (
+	"context"
+	"testing"
+	"time"
+
+	dbent "github.com/Wei-Shaw/sub2api/ent"
+	"github.com/Wei-Shaw/sub2api/internal/pkg/pagination"
+	"github.com/Wei-Shaw/sub2api/internal/service"
+	"github.com/stretchr/testify/suite"
+)
+
+type RedeemCodeRepoSuite struct {
+	suite.Suite
+	ctx    context.Context
+	client *dbent.Client
+	repo   *redeemCodeRepository
+}
+
+func (s *RedeemCodeRepoSuite) SetupTest() {
+	s.ctx = context.Background()
+	tx := testEntTx(s.T())
+	s.client = tx.Client()
+	s.repo = NewRedeemCodeRepository(s.client).(*redeemCodeRepository)
+}
+
+func TestRedeemCodeRepoSuite(t *testing.T) {
+	suite.Run(t, new(RedeemCodeRepoSuite))
+}
+
+func (s *RedeemCodeRepoSuite) createUser(email string) *dbent.User {
+	u, err := s.client.User.Create().
+		SetEmail(email).
+		SetPasswordHash("test-password-hash").
+		Save(s.ctx)
+	s.Require().NoError(err, "create user")
+	return u
+}
+
+func (s *RedeemCodeRepoSuite) createGroup(name string) *dbent.Group {
+	g, err := s.client.Group.Create().
+		SetName(name).
+		Save(s.ctx)
+	s.Require().NoError(err, "create group")
+	return g
+}
+
+// --- Create / CreateBatch / GetByID / GetByCode ---
+
+func (s *RedeemCodeRepoSuite) TestCreate() {
+	code := &service.RedeemCode{
+		Code:   "TEST-CREATE",
+		Type:   service.RedeemTypeBalance,
+		Value:  100,
+		Status: service.StatusUnused,
+	}
+
+	err := s.repo.Create(s.ctx, code)
+	s.Require().NoError(err, "Create")
+	s.Require().NotZero(code.ID, "expected ID to be set")
+
+	got, err := s.repo.GetByID(s.ctx, code.ID)
+	s.Require().NoError(err, "GetByID")
+	s.Require().Equal("TEST-CREATE", got.Code)
+}
+
+func (s *RedeemCodeRepoSuite) TestCreateBatch() {
+	codes := []service.RedeemCode{
+		{Code: "BATCH-1", Type: service.RedeemTypeBalance, Value: 10, Status: service.StatusUnused},
+		{Code: "BATCH-2", Type: service.RedeemTypeBalance, Value: 20, Status: service.StatusUnused},
+	}
+
+	err := s.repo.CreateBatch(s.ctx, codes)
+	s.Require().NoError(err, "CreateBatch")
+
+	got1, err := s.repo.GetByCode(s.ctx, "BATCH-1")
+	s.Require().NoError(err)
+	s.Require().Equal(float64(10), got1.Value)
+
+	got2, err := s.repo.GetByCode(s.ctx, "BATCH-2")
+	s.Require().NoError(err)
+	s.Require().Equal(float64(20), got2.Value)
+}
+
+func (s *RedeemCodeRepoSuite) TestGetByID_NotFound() {
+	_, err := s.repo.GetByID(s.ctx, 999999)
+	s.Require().Error(err, "expected error for non-existent ID")
+	s.Require().ErrorIs(err, service.ErrRedeemCodeNotFound)
+}
+
+func (s *RedeemCodeRepoSuite) TestGetByCode() {
+	_, err := s.client.RedeemCode.Create().
+		SetCode("GET-BY-CODE").
+		SetType(service.RedeemTypeBalance).
+		SetStatus(service.StatusUnused).
+		SetValue(0).
+		SetNotes("").
+		SetValidityDays(30).
+		Save(s.ctx)
+	s.Require().NoError(err, "seed redeem code")
+
+	got, err := s.repo.GetByCode(s.ctx, "GET-BY-CODE")
+	s.Require().NoError(err, "GetByCode")
+	s.Require().Equal("GET-BY-CODE", got.Code)
+}
+
+func (s *RedeemCodeRepoSuite) TestGetByCode_NotFound() {
+	_, err := s.repo.GetByCode(s.ctx, "NON-EXISTENT")
+	s.Require().Error(err, "expected error for non-existent code")
+	s.Require().ErrorIs(err, service.ErrRedeemCodeNotFound)
+}
+
+// --- Delete ---
+
+func (s *RedeemCodeRepoSuite) TestDelete() {
+	created, err := s.client.RedeemCode.Create().
+		SetCode("TO-DELETE").
+		SetType(service.RedeemTypeBalance).
+		SetStatus(service.StatusUnused).
+		SetValue(0).
+		SetNotes("").
+		SetValidityDays(30).
+		Save(s.ctx)
+	s.Require().NoError(err)
+
+	err = s.repo.Delete(s.ctx, created.ID)
+	s.Require().NoError(err, "Delete")
+
+	_, err = s.repo.GetByID(s.ctx, created.ID)
+	s.Require().Error(err, "expected error after delete")
+	s.Require().ErrorIs(err, service.ErrRedeemCodeNotFound)
+}
+
+// --- List / ListWithFilters ---
+
+func (s *RedeemCodeRepoSuite) TestList() {
+	s.Require().NoError(s.repo.Create(s.ctx, &service.RedeemCode{Code: "LIST-1", Type: service.RedeemTypeBalance, Value: 0, Status: service.StatusUnused}))
+	s.Require().NoError(s.repo.Create(s.ctx, &service.RedeemCode{Code: "LIST-2", Type: service.RedeemTypeBalance, Value: 0, Status: service.StatusUnused}))
+
+	codes, page, err := s.repo.List(s.ctx, pagination.PaginationParams{Page: 1, PageSize: 10})
+	s.Require().NoError(err, "List")
+	s.Require().Len(codes, 2)
+	s.Require().Equal(int64(2), page.Total)
+}
+
+func (s *RedeemCodeRepoSuite) TestListWithFilters_Type() {
+	s.Require().NoError(s.repo.Create(s.ctx, &service.RedeemCode{Code: "TYPE-BAL", Type: service.RedeemTypeBalance, Value: 0, Status: service.StatusUnused}))
+	s.Require().NoError(s.repo.Create(s.ctx, &service.RedeemCode{Code: "TYPE-SUB", Type: service.RedeemTypeSubscription, Value: 0, Status: service.StatusUnused}))
+
+	codes, _, err := s.repo.ListWithFilters(s.ctx, pagination.PaginationParams{Page: 1, PageSize: 10}, service.RedeemTypeSubscription, "", "")
+	s.Require().NoError(err)
+	s.Require().Len(codes, 1)
+	s.Require().Equal(service.RedeemTypeSubscription, codes[0].Type)
+}
+
+func (s *RedeemCodeRepoSuite) TestListWithFilters_Status() {
+	s.Require().NoError(s.repo.Create(s.ctx, &service.RedeemCode{Code: "STAT-UNUSED", Type: service.RedeemTypeBalance, Value: 0, Status: service.StatusUnused}))
+	s.Require().NoError(s.repo.Create(s.ctx, &service.RedeemCode{Code: "STAT-USED", Type: service.RedeemTypeBalance, Value: 0, Status: service.StatusUsed}))
+
+	codes, _, err := s.repo.ListWithFilters(s.ctx, pagination.PaginationParams{Page: 1, PageSize: 10}, "", service.StatusUsed, "")
+	s.Require().NoError(err)
+	s.Require().Len(codes, 1)
+	s.Require().Equal(service.StatusUsed, codes[0].Status)
+}
+
+func (s *RedeemCodeRepoSuite) TestListWithFilters_Search() {
+	s.Require().NoError(s.repo.Create(s.ctx, &service.RedeemCode{Code: "ALPHA-CODE", Type: service.RedeemTypeBalance, Value: 0, Status: service.StatusUnused}))
+	s.Require().NoError(s.repo.Create(s.ctx, &service.RedeemCode{Code: "BETA-CODE", Type: service.RedeemTypeBalance, Value: 0, Status: service.StatusUnused}))
+
+	codes, _, err := s.repo.ListWithFilters(s.ctx, pagination.PaginationParams{Page: 1, PageSize: 10}, "", "", "alpha")
+	s.Require().NoError(err)
+	s.Require().Len(codes, 1)
+	s.Require().Contains(codes[0].Code, "ALPHA")
+}
+
+func (s *RedeemCodeRepoSuite) TestListWithFilters_GroupPreload() {
+	group := s.createGroup(uniqueTestValue(s.T(), "g-preload"))
+	_, err := s.client.RedeemCode.Create().
+		SetCode("WITH-GROUP").
+		SetType(service.RedeemTypeSubscription).
+		SetStatus(service.StatusUnused).
+		SetValue(0).
+		SetNotes("").
+		SetValidityDays(30).
+		SetGroupID(group.ID).
+		Save(s.ctx)
+	s.Require().NoError(err)
+
+	codes, _, err := s.repo.ListWithFilters(s.ctx, pagination.PaginationParams{Page: 1, PageSize: 10}, "", "", "")
+	s.Require().NoError(err)
+	s.Require().Len(codes, 1)
+	s.Require().NotNil(codes[0].Group, "expected Group preload")
+	s.Require().Equal(group.ID, codes[0].Group.ID)
+}
+
+// --- Update ---
+
+func (s *RedeemCodeRepoSuite) TestUpdate() {
+	code := &service.RedeemCode{
+		Code:   "UPDATE-ME",
+		Type:   service.RedeemTypeBalance,
+		Value:  10,
+		Status: service.StatusUnused,
+	}
+	s.Require().NoError(s.repo.Create(s.ctx, code))
+
+	code.Value = 50
+	err := s.repo.Update(s.ctx, code)
+	s.Require().NoError(err, "Update")
+
+	got, err := s.repo.GetByID(s.ctx, code.ID)
+	s.Require().NoError(err)
+	s.Require().Equal(float64(50), got.Value)
+}
+
+// --- Use ---
+
+func (s *RedeemCodeRepoSuite) TestUse() {
+	user := s.createUser(uniqueTestValue(s.T(), "use") + "@example.com")
+	code := &service.RedeemCode{Code: "USE-ME", Type: service.RedeemTypeBalance, Value: 0, Status: service.StatusUnused}
+	s.Require().NoError(s.repo.Create(s.ctx, code))
+
+	err := s.repo.Use(s.ctx, code.ID, user.ID)
+	s.Require().NoError(err, "Use")
+
+	got, err := s.repo.GetByID(s.ctx, code.ID)
+	s.Require().NoError(err)
+	s.Require().Equal(service.StatusUsed, got.Status)
+	s.Require().NotNil(got.UsedBy)
+	s.Require().Equal(user.ID, *got.UsedBy)
+	s.Require().NotNil(got.UsedAt)
+}
+
+func (s *RedeemCodeRepoSuite) TestUse_Idempotency() {
+	user := s.createUser(uniqueTestValue(s.T(), "idem") + "@example.com")
+	code := &service.RedeemCode{Code: "IDEM-CODE", Type: service.RedeemTypeBalance, Value: 0, Status: service.StatusUnused}
+	s.Require().NoError(s.repo.Create(s.ctx, code))
+
+	err := s.repo.Use(s.ctx, code.ID, user.ID)
+	s.Require().NoError(err, "Use first time")
+
+	// Second use should fail
+	err = s.repo.Use(s.ctx, code.ID, user.ID)
+	s.Require().Error(err, "Use expected error on second call")
+	s.Require().ErrorIs(err, service.ErrRedeemCodeUsed)
+}
+
+func (s *RedeemCodeRepoSuite) TestUse_AlreadyUsed() {
+	user := s.createUser(uniqueTestValue(s.T(), "already") + "@example.com")
+	code := &service.RedeemCode{Code: "ALREADY-USED", Type: service.RedeemTypeBalance, Value: 0, Status: service.StatusUsed}
+	s.Require().NoError(s.repo.Create(s.ctx, code))
+
+	err := s.repo.Use(s.ctx, code.ID, user.ID)
+	s.Require().Error(err, "expected error for already used code")
+	s.Require().ErrorIs(err, service.ErrRedeemCodeUsed)
+}
+
+// --- ListByUser ---
+
+func (s *RedeemCodeRepoSuite) TestListByUser() {
+	user := s.createUser(uniqueTestValue(s.T(), "listby") + "@example.com")
+	base := time.Date(2025, 1, 1, 12, 0, 0, 0, time.UTC)
+
+	usedAt1 := base
+	_, err := s.client.RedeemCode.Create().
+		SetCode("USER-1").
+		SetType(service.RedeemTypeBalance).
+		SetStatus(service.StatusUsed).
+		SetValue(0).
+		SetNotes("").
+		SetValidityDays(30).
+		SetUsedBy(user.ID).
+		SetUsedAt(usedAt1).
+		Save(s.ctx)
+	s.Require().NoError(err)
+
+	usedAt2 := base.Add(1 * time.Hour)
+	_, err = s.client.RedeemCode.Create().
+		SetCode("USER-2").
+		SetType(service.RedeemTypeBalance).
+		SetStatus(service.StatusUsed).
+		SetValue(0).
+		SetNotes("").
+		SetValidityDays(30).
+		SetUsedBy(user.ID).
+		SetUsedAt(usedAt2).
+		Save(s.ctx)
+	s.Require().NoError(err)
+
+	codes, err := s.repo.ListByUser(s.ctx, user.ID, 10)
+	s.Require().NoError(err, "ListByUser")
+	s.Require().Len(codes, 2)
+	// Ordered by used_at DESC, so USER-2 first
+	s.Require().Equal("USER-2", codes[0].Code)
+	s.Require().Equal("USER-1", codes[1].Code)
+}
+
+func (s *RedeemCodeRepoSuite) TestListByUser_WithGroupPreload() {
+	user := s.createUser(uniqueTestValue(s.T(), "grp") + "@example.com")
+	group := s.createGroup(uniqueTestValue(s.T(), "g-listby"))
+
+	_, err := s.client.RedeemCode.Create().
+		SetCode("WITH-GRP").
+		SetType(service.RedeemTypeSubscription).
+		SetStatus(service.StatusUsed).
+		SetValue(0).
+		SetNotes("").
+		SetValidityDays(30).
+		SetUsedBy(user.ID).
+		SetUsedAt(time.Now()).
+		SetGroupID(group.ID).
+		Save(s.ctx)
+	s.Require().NoError(err)
+
+	codes, err := s.repo.ListByUser(s.ctx, user.ID, 10)
+	s.Require().NoError(err)
+	s.Require().Len(codes, 1)
+	s.Require().NotNil(codes[0].Group)
+	s.Require().Equal(group.ID, codes[0].Group.ID)
+}
+
+func (s *RedeemCodeRepoSuite) TestListByUser_DefaultLimit() {
+	user := s.createUser(uniqueTestValue(s.T(), "deflimit") + "@example.com")
+	_, err := s.client.RedeemCode.Create().
+		SetCode("DEF-LIM").
+		SetType(service.RedeemTypeBalance).
+		SetStatus(service.StatusUsed).
+		SetValue(0).
+		SetNotes("").
+		SetValidityDays(30).
+		SetUsedBy(user.ID).
+		SetUsedAt(time.Now()).
+		Save(s.ctx)
+	s.Require().NoError(err)
+
+	// limit <= 0 should default to 10
+	codes, err := s.repo.ListByUser(s.ctx, user.ID, 0)
+	s.Require().NoError(err)
+	s.Require().Len(codes, 1)
+}
+
+// --- Combined original test ---
+
+func (s *RedeemCodeRepoSuite) TestCreateBatch_Filters_Use_Idempotency_ListByUser() {
+	user := s.createUser(uniqueTestValue(s.T(), "rc") + "@example.com")
+	group := s.createGroup(uniqueTestValue(s.T(), "g-rc"))
+	groupID := group.ID
+
+	codes := []service.RedeemCode{
+		{Code: "CODEA", Type: service.RedeemTypeBalance, Value: 1, Status: service.StatusUnused, Notes: ""},
+		{Code: "CODEB", Type: service.RedeemTypeSubscription, Value: 0, Status: service.StatusUnused, Notes: "", GroupID: &groupID, ValidityDays: 7},
+	}
+	s.Require().NoError(s.repo.CreateBatch(s.ctx, codes), "CreateBatch")
+
+	list, page, err := s.repo.ListWithFilters(s.ctx, pagination.PaginationParams{Page: 1, PageSize: 10}, service.RedeemTypeSubscription, service.StatusUnused, "code")
+	s.Require().NoError(err, "ListWithFilters")
+	s.Require().Equal(int64(1), page.Total)
+	s.Require().Len(list, 1)
+	s.Require().NotNil(list[0].Group, "expected Group preload")
+	s.Require().Equal(group.ID, list[0].Group.ID)
+
+	codeB, err := s.repo.GetByCode(s.ctx, "CODEB")
+	s.Require().NoError(err, "GetByCode")
+	s.Require().NoError(s.repo.Use(s.ctx, codeB.ID, user.ID), "Use")
+	err = s.repo.Use(s.ctx, codeB.ID, user.ID)
+	s.Require().Error(err, "Use expected error on second call")
+	s.Require().ErrorIs(err, service.ErrRedeemCodeUsed)
+
+	codeA, err := s.repo.GetByCode(s.ctx, "CODEA")
+	s.Require().NoError(err, "GetByCode")
+
+	// Use fixed time instead of time.Sleep for deterministic ordering.
+	_, err = s.client.RedeemCode.UpdateOneID(codeB.ID).
+		SetUsedAt(time.Date(2025, 1, 1, 12, 0, 0, 0, time.UTC)).
+		Save(s.ctx)
+	s.Require().NoError(err)
+	s.Require().NoError(s.repo.Use(s.ctx, codeA.ID, user.ID), "Use codeA")
+	_, err = s.client.RedeemCode.UpdateOneID(codeA.ID).
+		SetUsedAt(time.Date(2025, 1, 1, 13, 0, 0, 0, time.UTC)).
+		Save(s.ctx)
+	s.Require().NoError(err)
+
+	used, err := s.repo.ListByUser(s.ctx, user.ID, 10)
+	s.Require().NoError(err, "ListByUser")
+	s.Require().Len(used, 2, "expected 2 used codes")
+	s.Require().Equal("CODEA", used[0].Code, "expected newest used code first")
+}